| Diagnosis and Testing Inspection and Verification - Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart | Electrical | - Fuse(s).
- Wiring harness.
- Electrical connector(s).
- Switch(es).
- Battery.
| - 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 Sympton Chart.
Symptom Chart | Symptom | Possible Sources | Action | | The ignition switch is inoperative | * Ignition switch. | * CARRY OUT the Ignition Switch Component Test. REFER to the Wiring Diagrams. | | * Circuit(s). | * | | No power in ACC | * Ignition switch. | * CARRY OUT the Ignition Switch Component Test. REFER to the Wiring Diagrams. | | * Circuit(s). | * | | No power in RUN | * Ignition switch. | * CARRY OUT the Ignition Switch Component Test. REFER to the Wiring Diagrams. | | * Circuit(s). | * | | No power in START | * Ignition switch. | * CARRY OUT the Ignition Switch Component Test. REFER to the Wiring Diagrams | | * Circuit(s). | * | | The multifunction switch does not operate correctly | * Switch(es). * Circuit(s). | * REFER to: Turn Signal, Cornering and Hazard Lamps (417-01 Exterior Lighting, Diagnosis and Testing), Headlamps (417-01 Exterior Lighting, Diagnosis and Testing), Wipers and Washers (501-16 Wipers and Washers, Diagnosis and Testing). | Pinpoint Test NOTE:Use a digital multimeter for all electrical measurements. | PINPOINT TEST A : THE IGNITION SWITCH IS INOPERATIVE | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | A1: CHECK THE IGNITION SWITCH ELECTRICAL CONNECTOR | | | 1 Remove the steering column shrouds. | | | 2 Check the ignition switch electrical connector. | | | Is the ignition switch electrical connector clean and secure? Yes No CLEAN and SECURE the ignition switch electrical connector. TEST the system for normal operation. | | A2: CHECK FOR VOLTAGE ON CIRCUIT SBP24A (VT/RD) | | | 1 Disconnect Ignition Switch C2DC32. | | | 2 Measure the voltage between the ignition switch C2DC32 Pin 4, circuit SBP24A (VT/RD), harness side and ground. | | | Is the voltage greater than 10 volts? Yes VERIFY the customers concern. No REPAIR the circuit SBP24A (VT/RD). TEST the system for normal operation. | | PINPOINT TEST B : NO POWER IN ACC | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | B1: CHECK FOR VOLTAGE ON CIRCUIT SBP24A (VT/RD) | | | 1 Disconnect Ignition Switch C2DC32. | | | 2 Measure the voltage between the ignition switch C2DC32 Pin 4, circuit SBP24A (VT/RD), harness side and ground. | | | Is the voltage greater than 10 volts? Yes REPAIR circuit CDC33A (VT/GN). TEST the system for normal operation. No REPAIR circuit SBP24A (VT/RD). TEST the system for normal operation. | | PINPOINT TEST C : NO POWER IN RUN | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | C1: CHECK FOR VOLTAGE ON CIRCUIT SBP24A (VT/RD) | | | 1 Disconnect Ignition Switch C2DC32. | | | 2 Measure the voltage between the ignition switch CDC32 Pin 4, circuit CDC33A (VT/GN), harness side and ground. | | | Is the voltage greater than 10 volts? Yes REPAIR the circuit CDC32D (BN/YE). TEST the system for normal operation. No REPAIR the circuit SBP24A (VT/RD). TEST the system for normal operation. | | PINPOINT TEST D : NO POWER IN START | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | D1: CHECK FOR VOLTAGE ON CIRCUIT SBP24A (VT/RD) | | | 1 Disconnect Ignition Switch CDC32. | | | 2 Measure the voltage between the ignition switch CDC32 Pin 4, circuit SBP77B (RD/GY) harness side and ground. | | | Is the voltage greater than 10 volts? Yes REPAIR circuit CDC35F (BU/WH). TEST the system for normal operation. No REPAIR circuit SBP24A (VT/RD). TEST the system for normal operation. | |
