Inspection and verification
1. Check the legitimacy of the customer's complaint by activating the system.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Table
Mechanical factors |
Electrical Factors |
– Starter |
– Fuse 10 (10A) – Fuse 8 (30A) – Battery - Starter relay – wiring harness – Loose or corroded connector (ov) |
3. If an obvious cause of the problem you identified or described by the client is found, eliminate it before proceeding to further actions (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 |
•Engine does not crank but relay clicks |
•Battery •Starter •Relay •Electrical circuit |
•Go to Pinpoint Test A. |
•Engine does not crank and relay does not click |
•PATS •Battery •Fuse •Relay •Electrical circuit •Starter •Ignition switch |
•Go to Pinpoint Test B. |
•Engine cranks slowly |
•Battery •Electrical circuit •Starter |
•Go to Pinpoint Test C. |
•Unusual starter noise |
•Starter • Ring gear flywheel |
•Check flywheel ring gear. See Section 303-00 for more information. • Inspect the starter for correct alignment, cracking of the housing. Make sure the mounting bolts are properly tightened. Install a new starter if necessary. |
• The starter turns but the engine does not turn over. |
•Starter |
• Inspect flywheel ring gear for missing teeth. Check that the starter is properly secured. If there is a problem, install a new starter. |
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