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P1550 BATTERY CURRENT SENSOR EC-303 < COMPONENT DIAGNOSIS > [QR25DE] C D E F G H I J K L M A EC N P O OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT 1. Disconnect battery current sensor harness connector. 2. Turn ignition switch ON. 3. Check voltage between battery current sensor terminal 1 and OK or NG OK >> GO TO 4. NG >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit, short to ground or short to power in harness or connectors. 4. CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between battery current sensor terminal 2 and ECM terminal 67. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 6. NG >> GO TO 5. BBIA0614E BBIA0630E Voltage: Approximately 5V PBIA9891J Continuity should exist. |