Part 1

Power Window: Power Windows does not Work by Operating the Front Passenger's or Rear Passenger's Sub Switches

Power Window Sub Switch Circuit:

Connectors:

CIRCUIT OPERATION
Power window motors open or close the door windows when the front passenger's or rear passenger's sub switch is moved to "UP" or "DOWN" position.

TECHNICAL DESCRIPTION (COMMENT)
A power window sub-switch or power window motor may be defective. Alternatively, the power window lock switch (incorporated in the power window main switch) may remain pressed to "LOCK" position.

TROUBLESHOOTING HINTS
- Malfunction of power window main switch
- Malfunction of front power window sub-switch (RH)
- Malfunction of rear power window sub-switch (LH)
- Malfunction of rear power window sub-switch (RH)
- Malfunction of front power window motor (RH)
- Malfunction of rear power window motor (LH)
- Malfunction of rear power window motor (RH)
- Damaged harness wires or connectors

DIAGNOSIS

Required Special Tool:
- MB991223: Harness Set

Part 1:

Part 2:

STEP 1. Check each switch on the power window main switch for continuity.
1. Remove the power window main switch.
2. Check continuity when each switch on the power window main switch is operated to "UP" or "DOWN" position.

Q: Is the power window main switch normal?

YES: Go to Step 2.

NO: Replace the power window main switch. When the power window sub-switch is operated, the power windows should open or close normally.

STEP 2. Check the power window lock switch.

Q: Is the power window lock switch at the "UNLOCK" position?

YES: Go to Step 3.

NO: Operate the power window lock switch to the "UNLOCK" position. When the power window sub-switch is operated, the power windows should open or close normally.

STEP 3. Check which door window is not opened or closed

Q: Which door window is not opened or closed?
Passenger's side : Go to Step 4.
Rear passenger (LH): Go to Step 17.
Rear passenger (RH): Go to Step 30.

STEP 4. Check the front power window sub-switch (RH) for continuity.
1. Remove the front power window sub-switch (RH). Refer to Door-Door Trim and Waterproof Film.
2. Check continuity when the front power window sub-switch (RH) is operated to "UP" or "DOWN" position.

Q: Is the front power window sub-switch (RH) normal?

YES: Go to Step 5.

NO: Replace the front power window sub-switch (RH). When the front power window sub-switch (RH) is operated, the front power window (RH) should open or dose normally.

STEP 5. Check the front power window motor (RH).
1. Remove the front power regulator assembly (RH). Refer to Door-Door Glass and Regulator.
2. Connect a battery to the motor terminal, and check that the motor runs freely.

Q: Is the front power window motor (RH) normal?

YES: Go to Step 6.

NO: Replace the front power regulator assembly (RH). When the front power window sub-switch (RH) is operated, the front power window (RH) should open or close normally.

STEP 6. Check at front power window sub-switch connector E-05 in order to check the power window relay circuit of the power supply to the front power window sub-switch (RH).
1. Disconnect front power window sub-switch (RH) connector E-05, and measure at the harness side.
2. Measure the voltage between terminal 7 and ground.
- The measured value should be approximately 12 volts (battery positive voltage).

Q: Does the measured voltage correspond with this range?

YES: Go to Step 9.

NO: Go to Step 7.

STEP 7. Check power window relay connector C-92 and front power window sub-switch connector E-05 for damage.

Q: Are power window relay connector C-92 and front power window sub-switch (RH) connector E-05 in good condition?

YES: Go to Step 8.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. When the front power window sub-switch (RH) is operated, the front power window (RH) should open or close normally.

STEP 8. Check the wiring harness between power window relay connector C-92 and front power window sub-switch (RH) connector E-05.

NOTE: Also check junction block connector C-87 and intermediate connector C-72. If junction block connector C-87 or intermediate connectors C-72 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between power window relay connector C-92 and front power window sub-switch (RH) connector E-05 in good condition?

YES: No action to be taken.

NO: Repair the wiring harness. When the front power window sub-switch (RH) is operated, the front power window (RH) should open or close normally.

STEP 9. Check at front power window sub-switch (RH) connector E-05 in order to check the ground circuit to the front power window sub-switch (RH).
1. Disconnect front power window sub-switch (RH) connector E-05, and measure at the harness side.
2. Measure the resistance value between terminal 8 and ground.
- The measured value should be 2 ohm or less.

Q: Does the measured resistance value correspond with this range?

YES: Go to Step 12.

NO: Go to Step 10.

STEP 10. Check power window main switch connector E-16 and front power window sub-switch (RH) connector E-05 for damage.

Q: Are power window main switch connector E-16 and front power window sub-switch (RH) connector E-05 in good condition?

YES: Go to Step 11.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. When the front power window sub-switch (RH) is operated, the front power window (RH) should open or close normally.