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U1001–CAN B BUS (-) CIRCUIT– MEMORY MIRROR MODULE (CONTINUED) For the Power Memory Mirror System circuit diagram (Refer to 8 - ELECTRICAL/POWER MIRRORS - SCHEMAT- For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes FOR THE DRIVER MEMORY MIRROR SYSTEM: ACTIVE CAN B BUS DTCs IN FRONT CONTROL MODULE (FCM) (D54) CAN B BUS (-) CIRCUIT OPEN TO DRIVER MEMORY MIRROR MODULE DRIVER MEMORY MIRROR MODULE FOR THE PASSENGER MEMORY MIRROR SYSTEM: ACTIVE CAN B BUS DTCs IN FRONT CONTROL MODULE (FCM) (D54) CAN B BUS (-) CIRCUIT OPEN TO PASSENGER MEMORY MIRROR MODULE PASSENGER MEMORY MIRROR MODULE NOTE: Since this DTC can set in the Driver Door Module (DDM) and in the Passenger Door Module (PDM) Diagnostic Test 1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase DTCs. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display: U1001 CAN B BUS (-) CIRCUIT? Yes >> Go To 2 No >> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche- matic as a guide, inspect the wiring and connectors. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 2. CHECK FOR ACTIVE CAN B BUS RELATED DTCS IN THE FRONT CONTROL MODULE (FCM) With the scan tool, read Front Control Module (FCM) DTCs Does the scan tool display any active CAN B BUS related DTCs? Yes >> Diagnose and repair the DTC(s). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING). No >> Go To 3 8N - 208 POWER MIRRORS - ELECTRICAL DIAGNOSTICS WK |