Check Gages Indicator Always On L18 8.1L Gasoline Engine
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics | |||
1 | Did you perform the Instrument Panel Cluster Diagnostic System Check? | Go to Step 2 | |
2 |
Does the CHECK GAGES indicator turn OFF after the displays test? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the CHECK GAGES indicator illuminate in the IPC? | Go to Step 4 | Go to Step 5 |
4 |
Does the CHECK GAGES indicator illuminate in the IPC? | Go to Step 6 | Go to Step 7 |
5 | Test the check gages indicator control circuit for a short to ground between C210 and the PCM. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9 |
6 | Test the check gages indicator control circuit for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 8 |
7 | 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 13 | Go to Step 10 |
8 | 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 13 | Go to Step 11 |
9 | Inspect for poor connections at the harness connector of the PCM. 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 13 | Go to Step 12 |
10 | Replace the MFAM. Refer to Multifunction Alarm Module Replacement . Did you complete the replacement? | Go to Step 13 | -- |
11 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 13 | -- |
12 |
Important:: Program the replacement PCM. Replace the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 8.1L. 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 2 |
Check Gages Indicator Always On 7.2L Diesel Engine LG5
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics | |||
1 | Did you perform the Instrument Panel Cluster Diagnostic System Check? | Go to Step 2 | |
2 |
Does the CHECK GAGES indicator turn OFF after the displays test? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the CHECK GAGES indicator turn OFF after the displays test? | Go to Step 9 | Go to Step 4 |
4 |
Does the CHECK GAGES indicator turn OFF after the displays test? | Go to Step 10 | Go to Step 5 |
5 | Test the signal circuit of the EOP switch for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 6 |
6 | Test the signal circuit of the ECT switch for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 7 |
7 |
Does the CHECK GAGES indicator turn OFF after the displays test? | Go to Step 11 | Go to Step 8 |
8 | Test the check gages indicator control circuit for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 12 |
9 | Inspect for poor connections at the harness connector of the EOP switch. 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 17 | Go to Step 13 |
10 | Inspect for poor connections at the harness connector of the ECT switch. 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 17 | Go to Step 14 |
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 17 | Go to Step 15 |
12 | 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 17 | Go to Step 16 |
13 | Replace the EOP switch. Refer to the Cat® Medium Duty Diesel Engine Manual - LG5. Did you complete the replacement? | Go to Step 17 | -- |
14 | Replace the ECT switch. Refer to the Cat® Medium Duty Diesel Engine Manual - LG5. Did you complete the replacement? | Go to Step 17 | -- |
15 | Replace the MFAM. Refer to Multifunction Alarm Module Replacement . Did you complete the replacement? | Go to Step 17 | -- |
16 | Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement? | Go to Step 17 | -- |
17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
