Initial Inspection and Diagnostic Overview

Starting System

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart
Mechanical Electrical
- Starter Motor. - Fuse 14 (30A)
- Battery. - Fuse 1 (5A)
- Starter relay.
- Transmission range switch.
- Wiring harness(es).
- Damaged, loose or corroded connectors

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart.

Condition(s):

The engine does not crank
Possible Source(s):
- Battery
- Starter motor
- Relay
- Ignition switch
- Transmission range switch (automatic transmission)

Action(s) to take:
- GO to Pinpoint Test A A : the Engine Does Not Crank

Engine cranks slowly
Possible Source(s):
- Battery
- Circuitry
- Starter motor

Action(s) to take:
- GO to Pinpoint Test B B : the Engine Cranks Slowly

Unusual starter motor noise
Possible Source(s):
- Starter motor
- Flywheel ring gear

Action(s) to take:
- CHECK flywheel ring gear.

INSPECT starter motor for alignment, cracked case. Make sure the mounting bolts are tightened. If necessary, INSTALL a new starter motor.

The starter spins but the engine does not crank
Possible Source(s):
- Starter motor

- Action(s) to take:
- INSPECT the flywheel ring gear for missing teeth. CHECK starter motor for correct mounting. If concern persists, INSTALL a new starter motor.