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100-09-33 100-09-33 Powertrain Diagnostic Routines Identification DIAGNOSIS AND TESTING (Continued) ROUTINE 9: VEHICLE DOES NOT CHARGE (NIMH VEHICLES) TEST STEP ACTION TO TAKE 9-12 CHECK EMERGENCY POWER OFF (EPO) SIGNAL TO BATTERY CONTROL MODULE (BCM) • Remove the traction battery and connect Traction Battery High-Voltage Yes = GO to 9-13. Lockout and Diagnostic Tool to the traction battery high-voltage two-pin C3994M. No = REPLACE the BCM. WARNING: The traction battery contains high-voltage components and wiring. High-voltage insulated safety gloves and face shield must be worn when carrying out the following steps. Failure to follow this warning may result in severe personal injury or death. • Connect Traction Battery High Voltage Service Cord to traction battery support tray in-line C1935F and in-line C1935M. • Connect Traction Battery Low Voltage Service Cord to traction battery support tray in-line C1939F and in-line C1939M. • Connect 104-Pin Breakout Box (BOB) to BCM and BCM C1986, C1987 using the BCM/TIM BOB Adapter Cable and Overlay. • With key ON, monitor BCM PID EMG PO. • Connect a jumper wire between BOB pins A10 and A18. • Does the EMG PO PID indicate DISABLE? 9-13 CHECK CIRCUIT 3006 (P/LG) FOR OPEN • With key OFF, disconnect contactor box C1982 and measure the Yes = REPLACE the contactor resistance of the P/LG wire between pin 9 on contactor box C1982 and BOB pin A18. • Is the resistance less than 5 ohms? No = REPAIR the P/LG wire. 9-14 CHECK CHARGER PILOT SIGNAL AT TRACTION BATTERY CHARGER • With key OFF, disconnect traction battery charger C1993. Yes = • Connect the vehicle to a power control station (PCS). No = GO to 9-15. • With key OFF, measure the voltage between pin 5 (LB/R wire) on traction battery charger C1993 and ground. • Is the voltage greater than 10 volts? 9-15 CHECK CHARGER PILOT SIGNAL AT TRACTION BATTERY SUPPORT TRAY • With key OFF, disconnect traction battery support tray in-line C1939 and Yes = connect 104-Pin Breakout Box (BOB) to in-line C1939M using Traction Battery Low Voltage Service Cord; do not connect Traction Battery Low Voltage Service Cord to in-line C1939F. • Connect the vehicle to a power control station (PCS). No = GO to 9-16. • With key OFF, measure the voltage between BOB pin 20 and ground (BOB pin 65). • Is the voltage greater than 10 volts? 9-16 CHECK CIRCUITS 3984 (R) AND 4009 (LB/R) (OUTSIDE OF TRACTION BATTERY SUPPORT TRAY) FOR OPEN(S) • Disengage the locks on the charger inlet connector, push the swing plate Yes = GO to 9-17. forward, and hold the swing plate in the forward position to access the terminals on the charger inlet connector. • With key OFF, measure the resistance of the R wire between pin 5 on No = REPAIR the wire(s) in charger inlet C5000 and BOB pin 20. question. • With key OFF, measure the resistance of the LB/R wire between pin 5 on traction battery charger C1993 and BOB pin 14. • Are the resistances less than 5 ohms? 9-17 CHECK CIRCUITS 3984 (R) AND 4009 (LB/R) (OUTSIDE OF TRACTION BATTERY SUPPORT TRAY) FOR SHORT(S) TO GROUND (Continued) |