Diagnosis Procedure

1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
   VOLTAGE SPECIFICATION
   
   

   +		-	Voltage
   ECM
   Connector	Terminal
   F111	46	Ground	Battery voltage
   	51
   E80	111
   	112

   Is the inspection result normal? 

   YES: GO TO 2.

   NO: Perform the trouble diagnosis for power supply circuit. Refer to "DIAGNOSIS PROCEDURE ".

1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector and ECM harness connector.
3. Check the continuity between fuel injector harness connector and ECM harness connector.
   CONTINUITY SPECIFICATION
   
   

   Cylinder	+		-		Continuity
   	Fuel injector		ECM
   	Connector	Terminal	Connector	Terminal
   1	F123	1	F110	101	Existed
   		2		108
   2	F124	1	F111	7
   		2		4
   3	F125	1	F111	6
   		2		3
   4	F126	1	F110	107
   		2		104
   5	F127	1	F111	2
   		2		9
   6	F128	1	F110	102
   		2		109
   7	F129	1	F110	106
   		2		103
   8	F130	1	F111	1
   		2		8

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

   Is the inspection result normal? 

   YES: GO TO 3.

   NO: Repair or replace error-detected parts.

Check the continuity between ECM harness connector and ground.

Is inspection result normal? 

YES: GO TO 4.

NO: Repair or replace error-detected parts.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

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

NO: Replace malfunctioning fuel injector. Refer to "REMOVAL AND INSTALLATION ".