TROUBLESHOOTING STRATEGY
Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points, Troubleshooting Contents.
DIAGNOSTIC TROUBLE CODE CHART POWER WINDOW
CAUTION On troubleshooting, if the ignition switch is turned ON while disconnecting connector(s), diagnostic trouble code(s) associated with other system may be set. On completion, check all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.
NOTE: P/W: Abbreviation of power Window
TROUBLE SYMPTOM CHART <POWER WINDOW>
CAUTION During diagnosis, a diagnostic trouble code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, check all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.
DIAGNOSTIC TROUBLE CODE PROCEDURES <POWER WINDOW>
CODE NO. L0730: P/W (DR) SW pulse 1 disconnection
CAUTION Before replacing the ECU, ensure that the input and output signal circuits are normal.
Driver's Power Window Circuit
COMMENTS ON TROUBLE SYMPTOM
If the pulse 1 signal from the front power window motor (LH) cannot be received, the power window main switch sets the diagnosis trouble code No.L0730.
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
STEP 1. Check power window main switch connector E-19, front power window motor (LH) connector E-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are power window main switch connector E-19, front power window motor (LH) connector E-16 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer to GROUP 00E, Harness Connector Inspection. Verify that the power window works normally.
STEP 2. Check the wiring harness between power window main switch connector E-19 (terminals 8, 9, 12) and front power window motor (LH) connector E-16 (terminals 3, 5, 6).
Q: Is the wiring harness between power window main switch connector E-19 (terminals 8, 9, 12) and front power window motor (LH) connector E-16 (terminals 3, 5, 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.
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.
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 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
DIAGNOSTIC PROCEDURE
STEP 1. Check power window main switch connector E-19, front power window motor (LH) connector E-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are power window main switch connector E-19, front power window motor (LH) connector E-16 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer to GROUP 00E, Harness Connector Inspection. Verify that the power window works normally.
STEP 2. Check the wiring harness between power window main switch connector E-19 (terminals 9, 11, 12) and front power window motor (LH) connector E-16 (terminals 5, 2, 6).
Q: Is the wiring harness between power window main switch connector E-19 (terminals 9, 11, 12) and front power window motor (LH) connector E-16 (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.
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.
CODE NO. L0734: P/W (DR) Above window position
COMMENTS ON TROUBLE SYMPTOM
If the driver's door window glass exceeds the fully closed position, power window main switch sets the diagnostic trouble code No. L0734.
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
STEP 1. Check the power window fully closed position
Q: Is the check result normal?
YES : The procedure is complete.
NO : Go to Step 2.
STEP 2. Diagnostic trouble code recheck
Replace the front power window motor (LH). Recheck 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.
CODE NO. L0736: P/W (DR) Sensor fail (ground)
CAUTION Before replacing the ECU, ensure that the input and output signal circuits are normal.
Driver's Power Window Circuit
COMMENTS ON TROUBLE SYMPTOM
If the ground fault of the front power window motor (LH) sensor power supply is detected, power window main switch sets the diagnosis trouble code No.L0736
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
STEP 1. Check power window main switch connector E-19, front power window motor (LH) connector E-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Are power window main switch connector E-19, front power window motor (LH) connector E-16 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer to GROUP 00E, Harness Connector Inspection. Verify that the power window works normally.
STEP 2. Check the wiring harness between power window main switch connector E-19 (terminal 12) and front power window motor (LH) connector E-16 (terminal 6).
Q: Is the wiring harness between power window main switch connector E-19 (terminal 12) and front power window motor (LH) connector E-16 (terminal 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.
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.
CODE NO. L0740: P/W (DR) 3 times jam - protection
COMMENTS ON TROUBLE SYMPTOM
If the anti-trap function is activated consecutively three times or more, power window main switch sets the diagnostic trouble code No. L0740.
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
STEP 1. Check the power window fully closed position
Q: Is the check result normal?
YES : The procedure is complete.
NO : Go to Step 2.
STEP 2. Diagnostic trouble code recheck
Replace the front power window motor (LH). Recheck 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.
CODE NO. L0746: P/W (DR) Parameter read fail
CODE NO. L0750: P/W (DR) Position read fail
COMMENTS ON TROUBLE SYMPTOM
PROBABLE CAUSES
DIAGNOSTIC PROCEDURE
Diagnostic trouble code recheck
Recheck 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.