Diagnostic Procedure
DIAGNOSTIC INFORMATION AND PROCEDURES CHART (ALL GAUGES INOPERATIVE)
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. With the DRBIII®, select System Monitors, then J1850 Module Scan. Does the DRBIII® display MIC PRESENT on the BUS? Yes --> Go To 2 No --> Refer to the COMMUNICATION CATEGORY and perform the appropriate symptom . Perform BODY VERIFICATION TEST - VER 1 . |
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| 2 | Turn the ignition on. With the DRBIII®, select Body, MIC, MODULE DISPLAY. Does the DRBIII® display NO RESPONSE from MIC? Yes --> Refer to symptom *NO CLUSTER BUS MESSAGE in the Communication category. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 3 |
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| 3 | Turn the ignition on. With the DRBIII®, select Body, MIC, SYSTEM TESTS, PCM Monitor. Does the DRBIII® display PCM INACTIVE ON THE BUS? Yes --> Refer to the appropriate test for problems related to *NO RESPONSE FROM THE POWERTRAIN CONTROL MODULE . Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 4 |
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| 4 | Turn the ignition off. Inspect the #10 Fuse in the Fuse Block. If the fuse is open, replace with proper rated fuse. Turn the ignition on for one minute. Turn the ignition off. Inspect the #10 Fuse in the Fuse Block. Is the fuse open? Yes --> Repair the Fused Ignition Switch Output circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 5 |
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| 5 | Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Check connectors - Clean/repair as necessary. Turn the ignition on. Measure the voltage between the Fused Ignition Switch Output circuit and ground. Is the voltage above 10.5 volts? Yes --> Go To 6 No --> Repair the Fused Ignition Switch Output circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
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| 6 | Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Check connectors - Clean/repair as necessary. Measure the resistance between ground and the Instrument Cluster Ground circuit. Is the resistance below 5.0 ohms? Yes --> Replace and configure the Instrument Cluster in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Repair the Instrument Cluster Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
All |