Code No.C1610: 4WD Actuator Power Supply Relay
OPERATION
DIAGNOSIS CODE SET CONDITIONS
- Battery power supply voltage is less than 6 V.
- Abnormal voltage in the 4WD-ECU.
PROBABLE CAUSES
- Malfunction of 4WD-ECU
- Malfunction of electronic control coupling solenoid
- Damaged harness wires and connectors
DIAGNOSIS PROCEDURE |
STEP 1. Check the wiring harness between electronic control coupling solenoid connector and 4WD-ECU connector terminal SOL+, SOL-. |
| Check the power supply or earth line for short circuit. |
Q.
Is the check result normal?
|
 Go to Step 2. |
|
 Repair the defective connector or the wiring harness. |
|
STEP 2. Check of the electronic control coupling solenoid |
Refer to  . |
Q.
Is the check result normal?
|
| Go to Step 3. |
|
| Replace the electronic control coupling (Refer to ). |
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STEP 3. Check whether the diagnosis code is reset. |
Q.
Is diagnosis code No.C1610 set?
|
| Replace the 4WD-ECU (Refer to ). Then go to Step
4. |
|
| Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction ). |
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STEP 4. Check whether the diagnosis code is reset. |
Q.
Is diagnosis code No.C1610 set?
|
| Return to Step 1. |
|
| This diagnosis is complete. |
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