Trouble Shooting: Notes

Trouble shooting of a power window system complaint begins with verification of the customer problem. If problem occurs, go to step 3. If problem does not occur, go to next step.
If problem does not occur, review conditions under which problem occurred for customer and try to duplicate those conditions. For example, if the problem occurs on rainy days or during high humidity conditions, sprinkle water onto vehicle and see if malfunction occurs. DO NOT sprinkle water directly into engine compartment or onto electronic components. Visually inspect for signs of mechanical and electrical damage. Inspect for blown fuses and damaged relays. Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary.
Inspect the multiplex communication system and confirm that there is no trouble by the basic inspection and DTC check. See PRE-CHECK under SELF-DIAGNOSTIC in MULTIPLEX COMMUNICATION SYSTEM article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT.

Determine problem symptom. See PROBLEM SYMPTOM INDEX table.

PROBLEM SYMPTOM INDEX

Symptom

Suspected Area ⁽¹⁾

All Power Windows Do Not Operate

⁽²⁾⁽³⁾⁽⁴⁾⁽⁵⁾⁽⁶⁾

Window Does Not Operate With Power Window Master Switch (Manual Or Automatic Operation Can Not Be Performed)

⁽⁷⁾

Remote Control Of All Windows (Except Driver's) Does Not Function With Master Switch (Windows Operate Normally With Each Of Master Switches)

⁽⁸⁾

Key Related Power Window Operation Does Not Operate With Driver Side Door Key Cylinder (Master Switch Operation Is Normal)

⁽⁹⁾

Power Window Does Not Operate With Multi-Function Transmitter (Windows Operate Normally With Master Switch)

⁽¹⁰⁾

Window Moves Down Without Being Ordered During Up Operation

⁽¹¹⁾

Driver Door

Power Window Does Not Operate

⁽³⁾⁽¹³⁾⁽¹²⁾⁽⁴⁾⁽⁵⁾

Auto Up (Or Down) Function Does Not Operate

⁽³⁾⁽⁵⁾

Jam Protection & Auto Up (Or Down) Function Does Not Operate

⁽¹⁴⁾⁽¹⁵⁾⁽⁵⁾

Window Lock Function Does Not Operate

⁽³⁾

Passenger Door

Power Window Does Not Operate

⁽¹³⁾⁽¹²⁾⁽¹⁶⁾

Auto Up (Or Down) Function Does Not Operate

⁽¹³⁾⁽¹⁶⁾

Jam Protection Function & Auto Up (Or Down) Function Does Not Operate

⁽¹⁴⁾⁽¹⁵⁾⁽¹⁶⁾

Rear Door

Power Window Does Not Operate

⁽¹⁷⁾⁽¹⁸⁾⁽¹⁹⁾

Auto Up (Or Down) Function Does Not Operate

⁽¹⁷⁾⁽¹⁹⁾

Jam Protection & Auto Up (Or Down) Function Does Not Operate

⁽²⁰⁾⁽²¹⁾⁽¹⁹⁾

⁽¹⁾	Perform test procedures in order listed under suspected area.

⁽²⁾	Check the PWS circuit. See PWS CIRCUIT in CIRCUIT TESTS in BODY CONTROL SYSTEMS article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT.

⁽³⁾	Check the power window master switch. See POWER WINDOW MASTER SWITCH CIRCUIT (DRIVER) under CIRCUIT TESTS and POWER WINDOW MASTER SWITCH under COMPONENT TESTS.

⁽⁴⁾	Check the wire harness. See WIRING DIAGRAMS .

⁽⁵⁾	Check the driver door ECU. See PIN VOLTAGE TESTS .

⁽⁶⁾	Check the body ECU No. 1. See BODY CONTROL SYSTEMS article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT.

⁽⁷⁾	Perform TEST A: WINDOW DOES NOT OPERATE WITH POWER WINDOW MASTER SWITCH (MANUAL OR AUTOMATIC OPERATION CAN NOT BE PERFORMED) under SYSTEM TESTS.

⁽⁸⁾	Perform TEST B: REMOTE CONTROL OF ALL WINDOWS (EXCEPT DRIVER'S) DOES NOT FUNCTION WITH MASTER SWITCH (WINDOWS OPERATE NORMALLY WITH EACH MASTER SWITCH) under SYSTEM TESTS.

⁽⁹⁾	Perform TEST C: KEY RELATED POWER WINDOW OPERATION DOES NOT OPERATE WITH DRIVER SIDE DOOR KEY CYLINDER (MASTER SWITCH OPERATION IS NORMAL) under SYSTEM TESTS.

⁽¹⁰⁾	Perform TEST D: POWER WINDOW DOES NOT OPERATE WITH MULTI-FUNCTION TRANSMITTER (WINDOWS OPERATE NORMALLY WITH MASTER SWITCH) under SYSTEM TESTS.

⁽¹¹⁾	Perform TEST E: WINDOW MOVES DOWN WITHOUT BEING ORDERED DURING UP OPERATION under SYSTEM TESTS.

⁽¹²⁾	Check the power window motor circuit. See POWER WINDOW MOTOR CIRCUIT (FRONT) under CIRCUIT TESTS and POWER WINDOW MOTOR (FRONT) under COMPONENT TESTS.

⁽¹³⁾	Check the power window switch circuit. See POWER WINDOW SWITCH CIRCUIT (PASSENGER) under CIRCUIT TESTS and POWER WINDOW SWITCH (PASSENGER & REAR) under COMPONENT TESTS.

⁽¹⁴⁾	Check the jam protection limit switch circuit. See JAM PROTECTION LIMIT SWITCH CIRCUIT (FRONT) under CIRCUIT TESTS.

⁽¹⁵⁾	Check the jam protection pulse switch circuit. See JAM PROTECTION PULSE SWITCH CIRCUIT (FRONT) under CIRCUIT TESTS.

⁽¹⁶⁾	Check the passenger door ECU. See PIN VOLTAGE TESTS .

⁽¹⁷⁾	Check the power window switch circuit. See POWER WINDOW SWITCH CIRCUIT (REAR) under CIRCUIT TESTS.

⁽¹⁸⁾	Check the power window motor circuit. See POWER WINDOW MOTOR CIRCUIT (REAR) under CIRCUIT TESTS.

⁽¹⁹⁾	Check the appropriate rear door ECU. See PIN VOLTAGE TESTS .

⁽²⁰⁾	Check the jam protection limit switch circuit. See JAM PROTECTION LIMIT SWITCH CIRCUIT (REAR) under CIRCUIT TESTS.

⁽²¹⁾	Check the jam protection pulse switch circuit. See JAM PROTECTION PULSE SWITCH CIRCUIT (REAR) under CIRCUIT TESTS.

Inspect the circuits of the power window system. See CIRCUIT TESTS .
After repairs have been completed, confirm that problem has been eliminated. Operate the system under same conditions recorded for original complaint. If problem is no longer present, repair has corrected problem. If problem is still present, further diagnosis and repair is required.