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Home >> Suzuki >> 2009 >> Equator Base, 4D Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (VQ40DE) - (3 Of 5) >> DTC P2135: TP 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 ].
G06441627Courtesy of SUZUKI OF AMERICA CORP.

OK or NG 
GO TO 2. Repair or replace ground connections.
CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT -1 
  1. Disconnect electric throttle control actuator harness connector.
G06441628G06441629Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

  1. 2. Turn ignition switch ON.
  2. 3. Check voltage between electric throttle control actuator terminal 2 and ground with SDT or tester.
G06441628G06441629Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.

Voltage: Approximately 5V 


OK or NG 
GO TO 7. GO TO 3.
CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT - II 
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check harness continuity between electric throttle control actuator terminal 2 and ECM terminal 47. Refer to WIRING DIAGRAM .

    Continuity should exist. 


OK or NG 
GO TO 4. Repair open circuit.
CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT - III 
Check harness for short to power and short to ground, between the following terminals.
OK or NG 
GO TO 5. Repair short to ground or short to power in harness or connectors.
CHECK APP SENSOR 
Refer to [P2127, P2128 APP SENSOR ].
OK or NG 
GO TO 11. GO TO 6.
REPLACE ACCELERATOR PEDAL ASSEMBLY 
  1. Replace accelerator pedal assembly.
  2. Perform "Accelerator Pedal Released Position Learning" in [PROCEDURE AFTER REPLACING ECM ].
  3. Perform "Throttle Valve Closed Position Learning" in [PROCEDURE AFTER REPLACING ECM ].
  4. Perform "Idle Air Volume Learning" in [PROCEDURE AFTER REPLACING ECM ].
INSPECTION END   
CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 66. Refer to WIRING DIAGRAM .

    Continuity should exist. 

  4. Also check harness for short to ground and short to power.

OK or NG 
GO TO 8. Repair open circuit or short to ground or short to power in harness or connectors.
CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
  1. Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 1, ECM terminal 69 and electric throttle control actuator terminal 3.

    Refer to WIRING DIAGRAM .

    Continuity should exist. 

  2. Also check harness for short to ground and short to power.

OK or NG 
GO TO 9. Repair open circuit or short to ground or short to power in harness or connectors.
CHECK THROTTLE POSITION SENSOR 
Refer to [P2135 TP SENSOR ].
OK or NG 
GO TO 11. GO TO 10.
10  REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR 
  1. Replace the electric throttle control actuator.
  2. Perform "Throttle Valve Closed Position Learning" in [PROCEDURE AFTER REPLACING ECM ].
  3. Perform "Idle Air Volume Learning" in [PROCEDURE AFTER REPLACING ECM ].
INSPECTION END   
11  CHECK INTERMITTENT INCIDENT 
Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]
INSPECTION END