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414-03B-52 414-03B-52 High Voltage/Traction Battery — Nickel Metal Hydride DIAGNOSIS AND TESTING (Continued) PINPOINT TEST J: CHARGER OVER CURRENT FAULT TEST STEP ACTION TO TAKE J1 CHECK CONTACTOR BOX AUXILIARY CURRENT SENSOR FOR IN-RANGE FAILURE • With key ON, monitor BCM PID AUX CNT. Yes = REPLACE the traction battery charger. • Turn the A/C on and turn the steering wheel back and forth. No = GO to J2. • Does the amperage for the AUX CNT PID increase and decrease? J2 CHECK AUXILIARY CURRENT SENSOR VOLTAGE STATUS • Remove the traction battery and connect Traction Battery High-Voltage Yes = REPLACE the BCM. Lockout and Diagnostic Tool to the traction battery high-voltage two-pin C3994M. No = REPLACE the contactor WARNING: The traction battery contains high-voltage box. 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. • With key OFF, disconnect contactor box C1982. • With key ON, monitor BCM PID AUX SEN. • Does the AUX SEN PID indicate greater then 1 volt? PINPOINT TEST K: CHARGER OVER VOLTAGE FAULT TEST STEP ACTION TO TAKE K1 CHECK TRACTION BATTERY POSITIVE (+) SENSE LINE CIRCUIT BETWEEN IN-LINE C1885F AND BATTERY MODULE 25 FOR SHORTED RESISTOR • Remove the traction battery and connect Traction Battery High-Voltage Yes = GO to K2. Lockout and Diagnostic Tool to the traction battery high-voltage two-pin C3994M. No = REPLACE high-voltage harness (14A280-NC). 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. • With key OFF, disconnect in-line C1885 (label W) and measure the resistance between the LB wire on in-line C1885F and battery module 25 positive (+) post. • Is the resistance between 28,000 and 34,000 ohms? K2 CHECK TRACTION BATTERY NEGATIVE (-) SENSE LINE CIRCUIT BETWEEN IN-LINE C1882F AND BATTERY MODULE 1 FOR OPEN • With key OFF, disconnect in-line C1882 (label R) and measure the Yes = REPLACE the BCM. resistance between the PK/BK wire on in-line C1882F and battery module 1 positive (+) post. • Is the resistance between 28,000 and 34,000 ohms? No = REPLACE high-voltage harness (14A280-AB). PINPOINT TEST L: CHARGER OVER AMP-HOURS FAULT TEST STEP ACTION TO TAKE L1 CHECK STATUS OF TRACTION BATTERY MODULES BY CARRYING OUT THE BATTERY MODULE DIAGNOSTIC TEST • With key ON, carry out the Battery Module Diagnostic Test. Refer to the Yes = procedure in Traction Battery System. (Continued) |