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*NO RESPONSE FROM ENGINE CONTROL MODULE (PCI BUS) - DIESEL (CONTINUED) For a complete wiring diagram Refer to Section 8W. Possible Causes ENGINE CONTROL MODULE POWER AND GROUND (D25) PCI BUS CIRCUIT OPEN ENGINE CONTROL MODULE Diagnostic Test 1. ESTABLISH COMMUNICATIONS WITH OTHER PCI BUS MODULES Turn the ignition on. NOTE: Ensure there is PCI bus communication with other modules. If not, refer to the PCI Bus Communi- NOTE: As soon as one or more modules communicates with the DRB, answer the question. With the DRB, attempt to communicate with the Instrument Cluster. Was the DRB able to I/D or communicate with either of the modules? Yes >> Go To 2 No >> Refer to the table of contents and perform the related symptom. Perform POWERTRAIN VERIFICATION TEST - VER 1 (DIESEL). 8E - 32 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS DR/DH |