Initial Inspection and Diagnostic Overview

Charging System

Overview

The generator is a "smart" system, able to allow for temperature variations and optimize battery charging.

Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious mechanical or electrical faults.

Mechanical Electrical
^ Generator
^ Generator ^ Battery
^ Drive belt ^ Starter motor
^ Drive belt tensioner ^ Harnesses and connectors
^ Generator pulley ^ Fuses Battery junction box (BJB) - fuse 20E Starter motor - megafuse
^ Check the security
of the generator fittings ^ Charge warning light function
^ Controller area network (CAN) circuits
^ Engine control module (ECM)

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. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
^ Make sure that all DTCs are cleared following rectification.

Make sure that all DTCs are cleared following rectification.