P1553

P1553 BATTERY CURRENT SENSOR

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:


Before performing the following procedure, confirm that battery voltage is 8 V or more at idle.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine and let it idle for least 10 seconds.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT-I

1.Disconnect battery current sensor harness connector.
2.Turn ignition switch ON.
3.Check the voltage between battery current sensor harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 2.

2. CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT-II

1.Turn ignition switch ON.
2.Disconnect ECM harness connector.
3.Check the continuity between battery current sensor harness connector and ECM harness connector.





Is the inspection result normal?
YES- GO TO 31
NO- Repair open circuit.

3. CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair short to ground or short to power in harness or connectors.

4. CHECK COMPONENTS

Check the following.
- Camshaft position sensor (bank 1) (P0340.)
- CKP sensor (P0335.)
- EVAP control system pressure sensor (P0451.)
- Refrigerant pressure sensor (Refrigerant Pressure Sensor.)
Is the inspection result normal?
YES- GO TO 5.
NO- Replace malfunctioning component.

5. CHECK APP SENSOR

P2138.
Is the inspection result normal?
YES- GO TO 10.
NO- GO TO 6.

6. REPLACE ACCELERATOR PEDAL ASSEMBLY

Replace accelerator pedal assembly.
- Models without Distance Control Assist system: {LINK_TO_MANY:0000000006889129}{LINK_TO_MANY:0000000006889130}{LINK_TO_MANY:0000000006889131}, "MODELS WITHOUT DISTANCE CONTROL
ASSIST SYSTEM : Removal and Installation"
- Models with Distance Control Assist system: With Distance Control Assist System
- INSPECTION END

7. CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between battery current sensor harness connector and ECM harness connector.





4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 8.
NO- Repair open circuit, short to ground or short to power in harness or connectors.

8. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.Check the continuity between battery current sensor harness connector and ECM harness connector.





2.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 9.
NO- Repair open circuit, short to ground or short to power in harness or connectors.

9. CHECK BATTERY CURRENT SENSOR

.
Is the inspection result normal?
YES- GO TO 10.
NO- Replace battery negative cable assembly.

10. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END


Component Inspection (Battery Current Sensor)


1. CHECK BATTERY CURRENT SENSOR

1.Turn ignition switch OFF.
2.Reconnect harness connectors disconnected.





3.Disconnect battery negative cable.
4.Install jumper cable between battery negative terminal and body ground.
5.Turn ignition switch ON.
6.Check the voltage between ECM harness connector terminals under the following conditions.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace battery negative cable assembly.