Inspection and verification
1. Check the customer's complaint.
2. Visually inspect for obvious signs of electrical damage.
Visual Inspection Table
Electrical factors:
- Wiring harness
- electrical connector (s)
- Candle (And) ignition
- The wire (A) spark plug
- Ignition coil block
- Powertrain control module (PCM)
3. If an obvious cause for a reported or received complaint is found, address it before proceeding with the next steps (if possible).
4. If the cause is not visually obvious, check the symptom and refer to the Symptom Chart.
Symptom table
|
State |
Possible Causes |
Action |
|
•Misfire |
•Candle (And) ignition •The wire (A) spark plug |
• PERFORM a KV test using WDS. |
|
• Block of ignition coils •PCM. • PCM calibration. |
• REFER to WDS. |
|
|
•Jerking when the engine is running |
•Candle (And) ignition •The wire (A) spark plug |
• PERFORM a KV test using WDS. |
|
• Block of ignition coils •PCM. • PCM calibration. |
• REFER to WDS. |
|
|
•Loss of engine power |
•Candle (And) ignition •The wire (A) spark plug |
• PERFORM a KV test using WDS. |
|
• Block of ignition coils |
• REFER to WDS. |
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