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Symptom: P1687-NO CLUSTER BUS MESSAGE When Monitored and Set Condition: P1687-NO CLUSTER BUS MESSAGE When Monitored: Engine Running. Set Condition: No BUS messages received from the MIC (Instrument Cluster) for 20 seconds. POSSIBLE CAUSES INTERMITTENT CONDITION COMMUNICATE WITH CLUSTER TEST ACTION APPLICABILITY 1 Turn the ignition on. t, read and record DTC and Freeze Frame information. Clear DTCs. Start the engine and turn it off several times, allowing the engine to run for at least t, read DTC’s. Does the DTC reset? All Yes → Go To 2 No → Test Complete. 2 Turn the ignition on. t, attempt to communicate with the Instrument cluster. Can communication be established with the Instrument Cluster? All Yes → Test Complete. No → Refer to the Communication Category and perform the appropri- ate symptom related to no communication with cluster. 222 DRIVEABILITY - 1.6L GAS |