For 1990-2009 cars

### Tools Required

SA9154Z-A Starting and Charging System Tester

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Diagnostic System Check for Engine Electrical? | -- | Go to Step 2 | Go to Diagnostic System Check - Engine Electrical
2 | Start the engine, observe the charge indicator on the instrument panel cluster (IPC) or message in the driver information center (DIC). Does the charge indicator illuminate or the DIC display a charging system message? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3 |

1. Turn OFF the ignition.
2. Connect the red lead of the SA9154Z-A to the battery positive terminal
3. Connect the grey lead of the SA9154Z-A to the output circuit of the generator.
4. Start the engine.
5. Turn On the SA9154Z-A .
6. Turn Off all vehicle accessories Off.
7. Follow the SA9154Z-A prompts.
8. Press CHARGING SYSTEM TEST.

Is the voltage displayed within the specified value?

13.0 V - 15.5 V

Go to Step 4

Go to Step 5

4 | Is the generator output current greater than or equal to the load test value given in Generator Usage ? | -- | Go to Step 6 | Go to Step 5
5 | Replace the generator. Refer to Generator Replacement . Did you complete the replacement? | -- | Go to Step 6 | --
6 | Operate the vehicle in order to verify the repair. Did you correct the condition? | -- | Generator OK | Go to Step 2