Gauge Assembly Input Test
NOTE:
If there is malfunction of the parking brake reminder and speedometer function simultaneously, troubleshooting the vehicle speed signal circuit first.
- Remove the gauge assembly and disconnect the all connectors from the gauge assembly (see GAUGE ASSEMBLY REPLACEMENT ).
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 3.
- Reconnect the connectors to the gauge assembly, and make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the gauge internal circuit must be faulty; replace the gauge assembly.GAUGE ASSEMBLY INPUT TEST RESULT CHART
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained A23 BLU/RED Ignition switch ON (II), driver's seat belt unbuckled Check for voltage to ground: There should be 1 V or less. - Poor ground (G601)
- Faulty driver's seat belt switch
- An open in the wire
Ignition switch ON (II), driver's seat belt buckled Check for voltage to ground: There should be 5 V or more. - Faulty driver's seat belt switch
- A short to ground
B10 BLU/YEL Ignition switch ON (II), engine OFF Check for voltage to ground: There should be less than 1 V. - Faulty oil pressure switch
- An open in the wire
Start the engine Check for voltage to ground: There should be battery voltage. - Insufficient oil
- Improper lubrication
- Faulty engine oil pressure switch
- An open in the wire
- A short in the wire
B17 GRN/RED Ignition switch ON (II), parking brake set Check for voltage to ground: There should be 1 V or less. - Poor ground (G601)
- Faulty parking brake switch
- An open in the wire
Ignition switch ON (II), parking brake released Check for voltage to ground: There should be 5 V or more. - Faulty parking brake switch
- A short to ground