Diagnosis Item
3: Diagnose shorts between CAN_H and L lines.
| caution |
When servicing a CAN bus line, earth yourself by touching a metal
object such as an unpainted water pipe. If you fail to do, a component connected to the CAN
bus line may be broken.
|
FUNCTION
TROUBLE JUDGEMENT CONDITIONS
TROUBLESHOOTING HINTS
- Malfunction of the wiring harness
| note |
The M.U.T.-III cannot receive all the periodically sent data from each ECU by the open circuit
of harness between the diagnosis connector, the joint connector (CAN1) and the joint connector
(CAN2). In addition, the M.U.T.-III measures the voltage itself and shows 2.5 volts due to the
open circuit of harness. Therefore, it is judged as a short between CAN_H and CAN_L line.
|
- Malfunction of the connector
- Malfunction of each ECU
|
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STEP 1. Connector check: D-230 intermediate connector
|
|
|
| caution |
The strand end of the twist wire should be within 10 cm from
the connector. For details refer to  .
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Q.
Is the check result normal?
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|
|
 Go to Step 2.
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|
 Repair the defective connector.
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STEP 2. Resistance measurement at D-230 intermediate connector.
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| caution |
A digital multimeter should be used. For details refer to .
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| caution |
The test wiring harness should be used. For details refer
to .
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|
(1)Disconnect the connector, and measure at its male-side intermediate connector (at
the instrument panel wiring harness side).
|
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|
(2)Turn the ignition switch to the LOCK (OFF) position.
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|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
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|
(4)Resistance between D-230 intermediate connector terminal Nos.12 and 13
OK: 120 ±
20 Ω
|
|
|
Q.
Is the check result normal?
|
|
|
<Within 120 ±
20 Ω>
Go to Step 3.
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<Not within 120 ±
20 Ω>
Go to Step 16.
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STEP 3. Connector check: D-22 joint connector (CAN2)
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| caution |
The strand end of the twist wire should be within 10 cm from
the connector. For details refer to .
|
|
|
|
When checking the joint connector, ensure that its wiring harness side and its short pins
are not damaged.
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|
Q.
Is the check result normal?
|
|
|
Go to Step 4.
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|
|
Repair a defective connector or replace the joint connector.
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STEP 4. Resistance measurement at D-22 joint connector (CAN2).
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|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN2), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
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|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-22 joint connector (CAN2) terminal Nos.6 and 11 <3000,
3800>
OK: 120 ±
20 Ω
|
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|
(5)Resistance between D-22 joint connector (CAN2) terminal Nos.1 and 12 <3200>
OK: 120 ±
20 Ω
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
YES <vehicles with ASTC> : <Within 120 ±
20 Ω>
Go to Step 6.
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YES <vehicles without ASTC> : <Within 120 ±
20 Ω>
Go to Step 8.
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NO : <Not within 120 ±
20 Ω>
Go to Step 5.
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STEP 5. Resistance measurement at D-42 resistor connector <vehicles
without ASTC>
or D-223 ASTC-ECU connector <vehicles with ASTC>.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the resistor or ASTC-ECU, and measure at the equipment side.
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|
|
(2)Resistance at D-42 resistor connector terminal Nos.1 and 2 <vehicles without
ASTC>
OK: 120 ±
20 Ω
|
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|
(3)Resistance at D-223 ASTC-ECU connector terminal Nos.83 and 84 <vehicles
with ASTC>
OK: 120 ±
20 Ω
|
|
|
Q.
Is the check result normal?
|
|
|
<Within 120 ±
20 Ω>
Repair the wiring harness
between joint connector (CAN2) and the resistor or ASTC-ECU connector.
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|
<Not within 120 ±
20 Ω>
Check the resistor
or ASTC-ECU connector, and repair if necessary. If the resistor or ASTC-ECU connector is in
good condition, replace the hydraulic unit assembly.
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|
|
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|
STEP 6. Resistance measurement at D-22 joint connector (CAN2).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN2), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
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|
(4)Resistance between D-22 joint connector (CAN2) terminal Nos.1 and 4 <3000,
3800>
OK: 1 kΩ
or more
|
|
|
(5)Resistance between D-22 joint connector (CAN2) terminal Nos.2 and 13 <3200>
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Go to Step 8.
|
|
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|
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|
<Less than 1 kΩ>
Go to Step 7.
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|
STEP 7. Resistance measurement at D-18 G and yaw rate sensor connector.
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|
| caution |
A digital multimeter should be used. For details refer to .
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|
|
|
(1)Remove the G and yaw rate sensor, and measure at the equipment side.
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|
|
(2)Resistance at D-18 G and yaw rate sensor connector terminal Nos.2 and 3
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN2) and the G and yaw rate sensor connector.
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|
|
|
|
|
<Less than 1 kΩ>
Check the G and yaw rate sensor connector,
and repair if necessary. If the G and yaw rate sensor connector is in good condition, replace
the G and yaw rate sensor.
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|
STEP 8. Resistance measurement at D-22 joint connector (CAN2).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect the connector, and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-22 joint connector (CAN2) terminal Nos.7 and 12 <3000,
3800>
OK: 1 kΩ
or more
|
|
|
(5)Resistance between D-22 joint connector (CAN2) terminal Nos.5 and 16 <3200>
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
YES <3200-A/T> : <1 kΩ
or more>
Go to Step 10.
|
|
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|
YES <except 3200-A/T> : <1 kΩ
or more>
Go to Step 12.
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|
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|
NO : <Less than 1 kΩ>
Go to Step 9.
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|
STEP 9. Resistance measurement at D-216 <3000-A/T, 3800>
or
engine-ECU connector D-245 <3000-M/T>
or D-215 <3200>
connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the engine-ECU, and measure at the equipment side.
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|
|
(2)Resistance between D-216 <3000-A/T, 3800>
or engine-ECU connector
D-245 <3000-M/T>
connector terminal Nos.61 and 62 <3000, 3800>
OK: 1 kΩ
or more
|
|
|
(3)Resistance between D-215 engine-ECU connector terminal Nos.108 and 109 <3200>
OK: 120 ±
20 Ω
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN2) and the engine-A/T-ECU connector <3000-A/T, 3800>
or engine-ECU
connector <3000-M/T, 3200>.
|
|
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|
<Less than 1 kΩ>
Check the engine-A/T-ECU connector <3000-A/T,
3800>
or engine-ECU connector <3000-M/T, 3200>, and repair if necessary.
If the engine-A/T-ECU connector <3000-A/T, 3800>
or engine-ECU connector <3000-M/T,
3200>
is in good condition, replace the engine-A/T-ECU connector <3000-A/T,
3800>
or engine-ECU connector <3000-M/T, 3200>.
|
|
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|
|
STEP 10. Resistance measurement at D-22 joint connector (CAN2).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN2), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-22 joint connector (CAN2) terminal Nos.4 and 15
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Go to Step 12.
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|
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|
<Less than 1 kΩ>
Go to Step 11.
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|
STEP 11. Resistance measurement at D-140 A/T-ECU connector.
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|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the A/T-ECU, and measure at the equipment side.
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|
|
(2)Resistance at D-140 A/T-ECU connector terminal Nos.24 and 16
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN2) and the A/T-ECU connector.
|
|
|
|
|
|
<Less than 1 kΩ>
Check the A/T-ECU connector,
and repair if necessary. If the A/T-ECU connector is in good condition, replace the A/T-ECU.
|
|
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|
|
STEP 12. Resistance measurement at D-22 joint connector (CAN2).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN2), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-22 joint connector (CAN2) terminal Nos.3 and 9 <3000,
3800>
OK: 1 kΩ
or more
|
|
|
(5)Resistance between D-22 joint connector (CAN2) terminal Nos.3 and 14 <3200>
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Go to Step 14.
|
|
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|
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|
<Less than 1 kΩ>
Go to Step 13.
|
|
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|
|
STEP 13. Resistance measurement at D-24 SRS-ECU connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the SRS-ECU, and measure at the equipment side.
|
|
|
(2)Resistance at D-24 SRS-ECU connector terminal Nos.32 and 43
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN2) and the SRS-ECU connector.
|
|
|
|
|
|
<Less than 1 kΩ>
Check the SRS-ECU connector, and repair
if necessary. If the SRS-ECU connector is in good condition, replace the SRS-ECU.
|
|
|
|
|
|
STEP 14. Resistance measurement at D-22 joint connector (CAN2).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN2), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-22 joint connector (CAN2) terminal Nos.8 and 10 <3000,
3800>
OK: 1 kΩ
or more
|
|
|
(5)Resistance between D-22 joint connector (CAN2) terminal Nos.6 and 17 <3200>
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN2) and intermediate connector (D-230).
|
|
|
|
|
|
<Less than 1 kΩ>
Go to Step 15.
|
|
|
|
|
|
STEP 15. Resistance measurement at D-124 transfer-ECU connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the transfer-ECU, and measure at the equipment side.
|
|
|
(2)Resistance at D-124 transfer-ECU connector terminal Nos.29 and 28
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN2) and the transfer-ECU connector.
|
|
|
|
|
|
<Less than 1 kΩ>
Check the transfer-ECU connector,
and repair if necessary. If the transfer-ECU connector is in good condition, replace the transfer-ECU.
|
|
|
|
|
|
STEP 16. Connector check: D-03 joint connector (CAN1)
|
|
|
| caution |
The strand end of the twist wire should be within 10 cm from
the connector. For details refer to .
|
|
|
|
When checking the joint connector, ensure that its wiring harness side and its short pins
are not damaged.
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 17.
|
|
|
|
|
|
Repair a defective connector or replace the joint connector.
|
|
|
|
|
|
STEP 17. Resistance measurement at D-03 joint connector (CAN1).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN1), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-03 joint connector (CAN1) terminal Nos.3 and 14 <LHD>
OK: 120 ±
20 Ω
|
|
|
(5)Resistance between D-03 joint connector (CAN1) terminal Nos.1 and 12 <RHD>
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<Within 120 ±
20 Ω>
Go to Step 19.
|
|
|
|
|
|
<Not within 120 ±
20 Ω>
Go to Step 18.
|
|
|
|
|
|
STEP 18. Resistance measurement at D-04 combination meter connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the combination meter, and measure at the equipment side.
|
|
|
(2)Resistance between D-04 combination meter connector terminal Nos.23 and 24
OK: 120 ±
20 Ω
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<Within 120 ±
20 Ω>
Repair the wiring harness
between joint connector (CAN1) and the combination meter connector.
|
|
|
|
|
|
<Not within 120 ±
20 Ω>
Check the combination
meter connector, and repair if necessary. If the combination meter connector is in good condition,
replace the combination meter.
|
|
|
|
|
|
STEP 19. Resistance measurement at D-03 joint connector (CAN1).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN1), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-03 joint connector (CAN1) terminal Nos.6 and 17
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Go to Step 21.
|
|
|
|
|
|
<Less than 1 kΩ>
Go to Step 20.
|
|
|
|
|
|
STEP 20. Resistance measurement at D-420 ETACS-ECU connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the ETACS-ECU, and measure at the equipment side.
|
|
|
(2)Resistance at D-420 ETACS-ECU connector terminal Nos.72 and 73
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN1) and the ETACS-ECU connector.
|
|
|
|
|
|
<Less than 1 kΩ>
Check the ETACS-ECU connector, and
repair if necessary. If the ETACS-ECU connector is in good condition, replace the ETACS-ECU.
|
|
|
|
|
|
STEP 21. Resistance measurement at D-03 joint connector (CAN1).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN1), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-03 joint connector (CAN1) terminal Nos.4 and 15
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
YES <Vehicles with auto lamp or security alarm> : <1 kΩ
or more>
Go to Step 23.
|
|
|
|
|
|
YES <Vehicles without auto lamp or security alarm> : <1 kΩ
or more>
Go to Step 25.
|
|
|
|
|
|
NO : <Less than 1 kΩ>
Go to Step 22.
|
|
|
|
|
|
STEP 22. Resistance measurement at D-106 centre display connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the centre display, and measure at the equipment side.
|
|
|
(2)Resistance at D-106 centre display connector terminal Nos.6 and 7
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN1) and the centre display connector.
|
|
|
|
|
|
<Less than 1 kΩ>
Check the centre display connector,
and repair if necessary. If the centre display connector is in good condition, replace the centre
display.
|
|
|
|
|
|
STEP 23. Resistance measurement at D-03 joint connector (CAN1).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN1), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-03 joint connector (CAN1) terminal Nos.7 and 18
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
YES <vehicles with ASTC> : <1 kΩ
or more>
Go to Step 25.
|
|
|
|
|
|
YES <vehicles without ASTC> : <1 kΩ
or more>
Go to Step 27.
|
|
|
|
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|
NO : <Less than 1 kΩ>
Go to Step 24.
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STEP 24. Resistance measurement at D-252 CAN converter-ECU connector.
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| caution |
A digital multimeter should be used. For details refer to .
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(1)Remove the CAN converter-ECU, and measure at the equipment side.
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(2)Resistance at D-252 CAN converter-ECU connector terminal Nos.7 and 6
OK: 1 kΩ
or more
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Q.
Is the check result normal?
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|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN1) and the CAN converter-ECU connector.
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<Less than 1 kΩ>
Check the CAN converter-ECU connector,
and repair if necessary. If the CAN converter-ECU connector is in good condition, replace the
CAN converter-ECU.
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STEP 25. Resistance measurement at D-03 joint connector (CAN1).
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|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
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|
(1)Disconnect joint connector (CAN1), and measure at the wiring harness side.
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(2)Turn the ignition switch to the LOCK (OFF) position.
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(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
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(4)Resistance between D-03 joint connector (CAN1) terminal Nos.2 and 13
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
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|
Q.
Is the check result normal?
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|
YES <3800> : <1 kΩ
or more>
Go to Step 29.
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YES <3200> : <1 kΩ
or more>
Go to Step 27.
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NO <3800 and 3200> : <Less than 1 kΩ>
Go to Step 26.
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STEP 26. Resistance measurement at D-308 steering wheel sensor connector.
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|
| caution |
A digital multimeter should be used. For details refer to .
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|
|
(1)Remove the steering wheel sensor, and measure at the equipment side.
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|
(2)Resistance at D-308 steering wheel sensor connector terminal Nos.3 and 4
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN1) and the steering wheel sensor connector.
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|
|
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|
<Less than 1 kΩ>
Check the steering wheel sensor connector,
and repair if necessary. If the steering wheel sensor connector is in good condition, replace
the steering wheel sensor.
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|
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|
STEP 27. Resistance measurement at D-03 joint connector (CAN1).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect joint connector (CAN1), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-03 joint connector (CAN1) terminal Nos.5 and 16
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Go to Step 29.
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|
|
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|
<Less than 1 kΩ>
Go to Step 28.
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|
STEP 28. Resistance measurement at D-126 immobilizer-ECU connector.
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
(1)Remove the immobilizer-ECU, and measure at the equipment side.
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|
|
(2)Resistance at D-126 immobilizer-ECU connector terminal Nos.3 and 4
OK: 1 kΩ
or more
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN1) and the immobilizer-ECU connector.
|
|
|
|
|
|
<Less than 1 kΩ>
Check the immobilizer-ECU connector,
and repair if necessary. If the immobilizer-ECU connector is in good condition, replace the
immobilizer-ECU.
|
|
|
|
|
|
STEP 29. Resistance measurement at D-03 joint connector (CAN1).
|
|
|
| caution |
A digital multimeter should be used. For details refer to .
|
|
|
|
| caution |
The test wiring harness should be used. For details refer
to .
|
|
|
|
(1)Disconnect the joint connector (CAN1), and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the LOCK (OFF) position.
|
|
|
(3)
| caution |
When measuring the resistance, disconnect the negative battery
terminal. For details refer to .
|
Ensure that the negative battery terminal is disconnected.
|
|
|
(4)Resistance between D-03 joint connector (CAN1) terminal Nos.1 and 12 <LHD>
OK: 1 kΩ
or more
|
|
|
(5)Resistance between D-03 joint connector (CAN1) terminal Nos.3 and 14 <RHD>
OK: 1 kΩ
or more
| caution |
Strictly observe the specified wiring harness repair procedure.
For details refer to .
|
|
|
|
Q.
Is the check result normal?
|
|
|
<1 kΩ
or more>
Repair the wiring harness between joint
connector (CAN1) and intermediate connector (D-230).
|
|
|
|
|
|
<Less than 1 kΩ>
Check the diagnosis connector, and
repair if necessary. If the diagnosis connector is in good condition, repair the wiring harness
between joint connector (CAN1) and the diagnosis connector.
|
|
|
|