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AUTOMATIC DRIVE POSITIONER SE-49 C D E F G H J K L M A B SE 2. CHECK LCU Replace the malfunctioning LCU with a known-good one, and carry out the communication diagnosis. Refer to SE-46, "COMMUNICATION DIAGNOSIS" . OK or NG OK >> Replace LCU. NG >> Repair the harness between the indicated LCU and BCM. COMMUNICATION SYSTEM C 1. CHECK HARNESS CONNECTOR Check terminals (at the control unit and harness) on BCM and LCU for disconnection, bend, poor connection, OK or NG OK >> GO TO 2. NG >> Repair the terminals and connectors. 2. CHECK BCM Replace the malfunctioning BCM with a known-good one, and carry out the communication diagnosis. Refer SE-46, "COMMUNICATION DIAGNOSIS" OK or NG OK >> Replace BCM. NG >> Repair the harness between the LCU and BCM control. SWITCH MONITOR Perform the diagnosis for the switch system input to each control unit. Operation Procedure Diagnosis Result Display ● Detects the status change (switch ON/OFF operation) of the switch to be checked, and turns on/off the PIIA2869E |