Code No.P1771 (P0705) Inhibitor switch system <4A/T>
INHIBITOR SWITCH SYSTEM CIRCUIT
OPERATION
DIAGNOSIS CODE SET CONDITIONS
PROBABLE CAUSES
- Malfunction of the inhibitor switch
- Damaged harness wires and connectors
- Malfunction of the A/T-ECU
DIAGNOSIS PROCEDURE |
STEP 1. Check the inhibitor switch. |
| Refer to . |
Q.
Is the check result normal?
|
 Go to Step 2. |
|
 Replace the inhibitor switch. |
|
STEP 2. Connector check: B-14 Inhibitor switch connector, B-10 intermediate connector, C-20 A/T-ECU connector |
| Check for the contact with terminals. |
Q.
Is the check result normal?
|
| Go to Step 3. |
|
| Repair the defective connector. |
|
STEP 3. Check the harness between inhibitor switch connector B-14 terminal No.1, 8, 2, 3 and A/T-ECU connector C-20 terminal No.55, 66, 56, 67. |
| Check the output line for open circuit or short circuit. |
Q.
Is the check result normal?
|
| Go to Step 4. |
|
| Repair the wiring harness. |
|
STEP 4. M.U.T.-III data list |
| Item 34: Inhibitor switch (Refer to data list reference table). |
Q.
Is the check result normal?
|
| Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction ). |
|
| Replace the A/T-ECU. |
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