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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> Charge Indicator Always On

Charge Indicator Always On

Charge Indicator Always On

Step Action Value(s) Yes No
Schematic Reference: Starting and Charging Schematics 
Connector End View Reference: Engine Electrical Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle ? - Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
  1. Start the engine.
  2. Turn OFF all accessories.
Does the battery charge indicator remain illuminated?
- Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3
  1. Install a scan tool.
  2. Start the engine.
  3. Turn OFF all accessories.
  4. Increase engine speed to 1,500 RPM.
  5. With a scan tool, observe the Battery Voltage parameter in the body control module (BCM) data list, engine control module (ECM)/powertrain control module (PCM) data list, and the instrument panel cluster (IPC) data list.
  6. Compare the voltages.
Are all of the voltages within the specified range?
0.9-1.1 V Go to Step 4  Go to Step 5 
4 Are the voltages displayed within the specified range? 11-16 V Go to Step 5  Go to Charging System Test 
5 Test the battery positive voltage and ground circuits of the affected module for a high resistance or open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 8  Go to Step 6 
6 Inspect for poor connections at the harness connector of the affected module. Refer to Connector Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 8  Go to Step 7 
7 Replace the affected module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?
- Go to Step 8  -
8 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 2