Diagnosis Procedure

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

   +		-	Voltage (Approx.)
   Turbocharger boost sensor
   Connector	Terminal
   F75	1	Ground	5 V

   Is the inspection result normal? 

   YES: GO TO  3.

   NO: GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness connector for short to power and short to ground, between the following terminals.

   ECM		Sensor
   Connector	Terminal	Name	Connector	Terminal
   F25	39	FRP sensor	F5	1
   		EOP sensor	F43	3
   		Turbocharger boost sensor	F75	1
   F26	68	Battery current sensor	F52	1
   		G sensor	B32	3
   	72	CMP sensor	F109	1
   		EVT control position sensor	F110	1
   E18	118	APP sensor 2	E101	5

   Is inspection result normal? 

   YES: Perform the trouble diagnosis for power supply circuit.

   NO: Repair or replace error-detected parts.

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

   +		-		Continuity
   Turbocharger boost sensor		ECM
   Connector	Terminal	Connector	Terminal
   F75	3	F25	44	Existed

4. Also check harness for short to power.

   Is the inspection result normal? 

   YES: GO TO 4.

   NO: Repair or replace error-detected parts.

1. Check the continuity between turbocharger boost sensor harness connector and ECM harness connector.

   +		-		Continuity
   Turbocharger boost sensor		ECM
   Connector	Terminal	Connector	Terminal
   F75	2	F25	41	Existed

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

   Is the inspection result normal? 

   YES: GO TO 5.

   NO: Repair or replace error-detected parts.

Check the turbocharger boost sensor. Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

NO: Replace turbocharger boost sensor. Refer to "EXPLODED VIEW ".