Volt/Charge Indicator Inoperative. Buick Roadmaster 1996

For 1990-2009 cars

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

1

1. Disconnect the generator connector.
2. Attach the fused jumper from the generator connector terminal L to the ground.
3. Turn the ignition switch ON.

Is the Volts or Check Gauge indicator ON?

--

Go to Step 6

Go to Step 2

2

1. Disconnect the C205 connector.
2. Install a DVM to the ground at the terminal C of connector C205 (engine side).

Is continuity present?

--

Go to Step 3

Go to Step 7

3 | Install a fused jumper wire from the ground to the instrument connector C1 (Chev) or C2 (Buick) CKT25 (leave the cluster connected). Is the Volts or Check Gauge indicator ON? | -- | Go to Step 8 | Go to Step 4
4 | Using a DVM to ground, check for B+ at the instrument cluster connector C2 terminal A11 (CHecv) or A9 (Buick). Is B+ present? | -- | Go to Step 9 | Go to Step 5

5

1. Repair the open in CKT39.
2. IF OK, repair B+ to I/P INDC fuse 11.

Is the repair complete?

--

System OK

--

6

1. Check for poor connection at the generator terminal L.
2. If OK, repair or replace the generator. Refer to Generator Replacement .

Is the repair complete?

--

System OK

--

7 | Repair the open in CKT25 from connector C205 to terminal L of the generator connection. Is the repair complete? | -- | System OK | --
8 | Repair the open in CKT25 from instrument cluster to connector C205. Is the repair complete? | -- | System OK | --

9

1. Check the connections at the instrument cluster.
2. If OK, check the Volts or Check Gauge indicator bulb.
3. If OK, service the instrument cluster.

Is the repair complete?

--

System OK

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