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Nissan X-Trail 32. Instruction - part 1000
P148C EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR
EC-1129
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
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P148C EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR
DTC Description
INFOID:0000000010935823
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Exhaust throttle valve stuck
• Exhaust electric throttle control actuator
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P148C is displayed with DTC P1481 or P1482, first perform the trouble diagnosis for DTC P1481 or
P1482.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 3 seconds.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
EC-1129, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010935824
1.
CHECK DTC PRIORITY
If DTC P148C is displayed with DTC P1481 or P1482, first perform the trouble diagnosis for DTC P1481 or
P1482.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P148C
EXHAUST AIR FLAP FUNCTION
(Exhaust air flap function)
• 1.DEF: NO RESPONSE FROM THE
VALVE MOTOR
• Exhaust throttle valve regulation error.
• ECM detects an incorrect position of the exhaust throttle valve.