L0732

CODE NO. L0732: P/W (DR) SW pulse 2 disconnection

CAUTION: Before replacing the ECU, ensure that the input and output signal circuits are normal.

Driver's Side Power Window Circuit:

COMMENTS ON TROUBLE SYMPTOM
If the pulse 2 signal from the front power window motor (LH) cannot be received, the power window main switch sets the diagnosis trouble code No.L0732.

PROBABLE CAUSES
- Malfunction of the front power window motor (LH)
- Malfunction of the power window main switch
- Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Check power window main switch connector E-28, front power window motor (LH) connector E-14 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Are power window main switch connector E-28, front power window motor (LH) connector E-14 in good condition?

YES : Go to Step 2.

NO : Repair or replace the damaged component(s). Refer to general (electrical), Harness Connector Inspection. Verify that the power window works normally.

STEP 2. Check the wiring harness between power window main switch connector E-28 (terminals 9, 11, 12) and front power window motor (LH) connector E-14 (terminals 5, 2, 6).

Q: Is the wiring harness between power window main switch connector E-28 (terminals 9, 11,12) and front power window motor (LH) connector E-14 (terminals 5, 2, 6) in good condition?

YES : Go to Step 3.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Verify that the power window works normally.

STEP 3. Diagnostic trouble code recheck
Replace the front power window motor (LH). Recheck if the diagnostic trouble code is set.

1. Erase the diagnostic trouble code.
2. Operate the driver's door window switch on the power window main switch.
3. Check if the diagnostic trouble code is set.

Q: Is the diagnostic trouble code set?

YES : Replace the power window main switch.

NO : The procedure is complete. Verify that the power window works normally.