For 1990-2009 cars

## Odometer Trip/Reset Switch Inoperative Pontiac

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Instrument Cluster Schematics
1 | Did you perform the Instrument Cluster Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Instrument Cluster
2 |

1. Turn the ignition ON, with the engine OFF.
2. Press the trip reset switch.

Does the odometer toggle between trip and season?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 4 | --
4 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2

## Odometer Trip/Reset Switch Inoperative Oldsmobile

### Test Description

The number below refers to the step number on the diagnostic table.

1. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Instrument Cluster Schematics
1 | Did you perform the Instrument Cluster Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Instrument Cluster
2 |

1. Turn the ignition ON, with the engine OFF.
2. Press and release the trip reset switch.

Does the odometer toggle between trip and season?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3 |

1. Install a scan tool.
2. With a scan tool, observe the Trip Reset Switch parameter in the IPC Inputs Data list.

Does the Trip Reset Switch parameter display Inactive?

Go to Step 5

Go to Step 4

4 |

1. Disconnect the trip reset switch.
2. With a scan tool, observe the Trip Reset Switch parameter.

Does the Trip Reset Switch parameter display Inactive?

Go to Step 9

Go to Step 7

5 |

1. Turn the ignition OFF.
2. Disconnect the trip reset switch.
3. Connect a 3 amp fused jumper wire between the signal circuit of the trip reset switch and a good ground.
4. Turn the ignition ON, with the engine OFF.
5. With a scan tool, observe the Trip Reset Switch parameter.

Does the Trip Reset Switch parameter display Active?

Go to Step 8

Go to Step 6

6 | Test the signal circuit of the trip reset switch for an open, a high resistance, or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 10
7 | Test the signal circuit of the trip reset switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 10
8 | Test the ground circuit of the trip reset switch for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9
9 | Inspect for poor connections at the trip reset switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 11
10 | Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 12
11 | Replace the trip reset switch. Refer to Trip Odometer Reset Switch Replacement . Did you complete the replacement? | Go to Step 13 | --
12 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 13 | --
13 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3