Diagnosis and Testing Refer to Wiring Diagrams Section 501-11, for schematic and connector information. Inspection and Verification - Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart Mechanical | Electrical | - Window seal
- Door window frame
| - Fuse(s)
- Electrical connector(s)
- Switch(es)
- Grid wire(s)
- Circuit(s)
| - If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart Symptom Chart Symptom | Possible Sources | Action | All power windows are inoperative - front power windows | * Circuit(s). | * | The left or right power window is inoperative - driver side | * Driver side power window control switch. | * CARRY OUT the Driver Side Power Window Control Switch Component Test. REFER to the Wiring Diagrams. | * Driver side front door window regulator motor. * Circuit(s). | * | The left or right power window is inoperative - passenger side | * Passenger side power window control switch. | * CARRY OUT the Passenger Side Power Window Control Switch Component Test. REFER to the Wiring Diagrams. | * Driver side power window control switch. | * CARRY OUT the Driver Side Power Window Control Switch Component Test. REFER to the Wiring Diagrams. | * Passenger side front door window regulator motor. * Circuit(s). | * | The one-touch down feature is inoperative - front power windows | * Driver side power window control switch. | * CARRY OUT the Driver Side Power Window Control Switch Component Test. REFER to the Wiring Diagrams. | The defrost system is inoperative | * Central Junction Box (CJB). | * For additional information, REFER to WDS. | * Heated windshield glass relay. | * For additional information, REFER to WDS. | * Heated windshield glass control switch. | * CARRY OUT the Heated Windshield Glass Control Switch Component Test. REFER to the Wiring Diagrams. | * Heated rear window glass relay. | * For additional information, REFER to WDS. | * Heated rear window glass control switch. | * CARRY OUT the Heated Rear Window Glass Control Switch Component Test. REFER to the Wiring Diagrams. | * Heated rear window glass grid wire. * Circuit(s). | * For additional information, REFER to WDS. | The defrost system will not shut off automatically | * Central Junction Box (CJB). * Heated windshield glass relay. * Heated rear window glass relay. | * For additional information, REFER to WDS. | Pinpoint Tests NOTE:Use a digital multimeter for all electrical measurements. PINPOINT TEST A : ALL POWER WINDOWS ARE INOPERATIVE - FRONT POWER WINDOWS | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | A1: CHECK FOR VOLTAGE TO THE POWER WINDOW CONTROL SWITCHES | | 1 Ignition switch in position II. | | Do the power window control switch LEDs illuminate? Yes VERIFY the customer concern. No | A2: CHECK FOR CONTINUITY BETWEEN THE DRIVER SIDE POWER WINDOW CONTROL SWITCH AND GROUND | | 1 Ignition switch in position 0. | | 2 Disconnect Driver Side Power Window Control Switch C488. | | 3 Measure the resistance between the driver side power window control switch C488 pin 1, circuit 31-AJ7 (BK), harness side and ground. | | Is the resistance less than 5 ohms? Yes No REPAIR circuit 31-AJ7 (BK). TEST the system for normal operation. | A3: CHECK FOR VOLTAGE TO THE DRIVER SIDE POWER WINDOW CONTROL SWITCH | | 1 Ignition switch in position II. | | 2 Measure the voltage between the driver side power window control switch C488 pin 10, circuit 15-AJ7 (GN/BU), harness side and ground. | | Is the voltage greater than 10 volts? Yes VERIFY the customer concern. No REPAIR circuit 15-AJ7 (GN/BU). TEST the system for normal operation. | |