For 1990-2009 cars

Step | Action | Value | Yes | No
--- | --- | --- | --- | ---
1 |

1. Disconnect the generator connector.
2. Turn the ignition switch to RUN.
3. Connect a voltmeter J 39200 from the BRN 25 wire at the generator connector and to ground.

Is the voltage reading within the specification?

Battery voltage

Go to Step 2

Go to Step 4

2 | Connect a voltmeter from the BAT terminal at the generator and to ground. Is the voltage reading within the specification? | Battery voltage | Go to Step 3 | Go to Step 8
3 |

1. Reconnect the generator connector.
2. Turn OFF all of the accessories.
3. Run the engine at 2,000 RPM.
4. Connect a voltmeter J 39200 across the battery terminals.

Is the voltage reading within the specifications?

13-16 V

Go to Step 9

Go to Step 4

4 | Perform a generator bench check. Refer to Generator Assembly Bench Check. Is the voltage reading within the specifications? | 13-16 V | Go to Step 9 | Go to Step 10
5 | Backprobe the BRN 25 wire at the I/P cluster connector with a voltmeter J 39200 to ground. Is the voltage reading within the specification? | Battery voltage | Go to Step 11 | Go to Step 6
6 | Backprobe the PNK 39 wire at the I/P cluster connector terminal 28 with a voltmeter J 39200 to ground. Is the voltage reading within the specification? | Battery voltage | Go to Step 12 | Go to Step 7
7 | Locate and repair an open in PNK 39 wire from the I/P fuse block to the I/P cluster. Has the repair been completed? | -- | System OK | --
8 | Repair RED 2 wire from the S106 to the generator. Has the repair been completed? | -- | System OK | --
9 | Perform a battery load test. Refer to Battery Load Test . Is the battery serviceable? | -- | Go to Step 14 | Go to Step 13
10 | Install a replacement generator. Refer to Generator Replacement in Engine Mechanical. Has the repair been completed? | -- | System OK | --
11 | Locate, repair open in BRN 25 wire from the I/P cluster to the generator. Has the repair been completed? | -- | System OK | --
12 |

1. Battery tell tale filament open.
2. If OK, install a new I/P cluster.

Has the repair been completed?

--

System OK

--

13 | Install a battery. Refer to Battery Replacement . Has the repair been completed? | -- | System OK | --
14 | Charge the battery. Refer to Battery Charging. Has the repair been completed? | -- | System OK | --