For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 |

1. Start the engine.
2. Using a DMM, measure the voltage between the generator terminal L and ground.

Is the voltage greater than the specified value?

8 V

Go to Step 2

Go to Step 5

2 | Using a DMM, measure the voltage from the BATT terminal (RED) and ground. Is the voltage greater than the specified value? | 8 V | Go to Step 3 | Go to Step 6
3 |

1. Engine running at a fast idle.
2. All accessories turned OFF.
3. Using a DMM, measure the voltage across the battery terminals.

Is the voltage between the specified values?

13.3-15.5 V

Go to Step 4

Go to Step 7

4 |

1. Perform a generator load test. Refer to Generator Not Operating Properly .
2. If generator is OK, perform a battery load test. Refer to Battery Load Test .

Is repair completed?

--

Go to Charging System Check

--

5 | Check for open or poor connections in CKT 225, (RED), between the generator terminal L and the PCM connector C2, terminal 35. Is repair completed? | -- | Go to Charging System Check | --
6 | Check for an open in CKT 1 between the generator BATT terminal and the battery. Is the repair completed? | -- | Go to Charging System Check | --
7 | Repair or replace the generator. Is the repair completed? | -- | Go to Charging System Check | --