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Home >> Suzuki >> 2009 >> Equator RMZ-4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (VQ40DE) - (4 Of 5) >> DTC P0127: IAT Sensor >> Diagnosis Procedure
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Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step Action YES NO
CHECK GROUND CONNECTIONS 
  1. Turn ignition switch OFF.
  2. Loosen and retighten three ground screws on the body. Refer to [POWER SUPPLY AND GROUND CIRCUIT CHECK ].
G06441300Courtesy of SUZUKI OF AMERICA CORP.

OK or NG 
GO TO 2. Repair or replace ground connections.
CHECK INTAKE AIR TEMPERATURE SENSOR 
Refer to [P0127 IAT SENSOR ].
OK or NG 
GO TO 3. Replace mass air flow sensor (with intake air temperature sensor).
CHECK INTERMITTENT INCIDENT 
Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]
INSPECTION END