Check Gages Indicator Always On LG4
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics | ||||
1 | Did you review the system operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 |
Does the indicator illuminate after the displays test? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 | Observe the engine oil pressure gage in the IPC. Does the engine oil pressure gage display less than the specified value? | 5 psi (34.5 kPa) | Go to Step 4 | |
4 | Observe the engine coolant temperature gage in the IPC. Does the engine coolant temperature gage display more than the specified value? | 118°C (245°F) | Go to Engine Coolant Temperature Gage Inaccurate or Inoperative | Go to Step 5 |
5 |
Does the indicator illuminate in the IPC? | -- | Go to Step 6 | Go to Step 11 |
6 | Test the engine oil pressure signal circuit for a short to ground between the MFAM and the IPC. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 7 |
7 | Test the engine coolant temperature signal circuit for a short to ground between the MFAM and the IPC. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 8 |
8 | Test the check gages fuel indicator control circuit for a short to ground between the IPC and S262. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 9 |
9 | Test the check gages indicator control circuit for a short to ground between the MFAM and the IPC. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 10 |
10 | Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 12 |
11 | Inspect for poor connections at the harness connector of the MFAM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 14 | Go to Step 13 |
12 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | -- | Go to Step 14 | -- |
13 | Replace the MFAM. Refer to Multifunction Alarm Module Replacement . Did you complete the replacement? | -- | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
