DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1554 | BAT CURRENT SENSOR (Battery current sensor) | The output voltage of the battery current sensor is lower than the specified value while the battery voltage is high enough. |
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DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-383, "Component Function Check".
NOTE:
Use component function check to check the overall function of the battery current sensor circuit. During this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-384, "Diagnosis Procedure".
Component Function Check
1.PRECONDITIONING
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 12.8 V at idle.
Before performing the following procedure, confirm that all load switches and A/C switch are turned OFF.
>> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK
With CONSULT
“BAT CUR SEN” : above 2,300 mv at least once
Without
CONSULT
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-384, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK BATTERY CURRENT SENSOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Check sensor power supply 2 circuit. Refer to EC-444, "Diagnosis Procedure".
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts
5.CHECK BATTERY CURRENT SENSOR
Check the battery current sensor. Refer to EC-385, "Component Inspection (Battery Current Sensor)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace battery current sensor. Refer to PG-53, "Removal and Installation".
Component Inspection (Battery Current Sensor)
1.CHECK BATTERY CURRENT SENSOR
Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to PG-4, "How to Handle Battery".
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace battery current sensor. Refer to PG-53, "Removal and Installation".
Symptom diagnosis
Squeak and rattle trouble diagnoses
Work Flow
Customer interview
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any
custome ...
Dlc branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the data link connector for
damage, bend and loose connection
(connector side and harness side).
Is the inspection resul ...
Precaution for Liquid Gasket
REMOVAL OF LIQUID GASKET
After removing nuts and bolts, separate the mating surface, using Tool
and remove old liquid gasket.
Tool number : KV10111100 (J-37228)
CAUTION:
Be careful not to damage the mating surfaces.
Tap (1) Tool to insert it, and then slide it (2) by tapping on t ...