Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	VERIFY RELATED PENDING CODE AND/OR DTC Switch the ignition to off, then to ON (engine off). Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST .) Are any other PENDING CODEs and/or DTCs present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC TABLE .)
3		No	Go to the next step.
4	INSPECT PCM CONNECTOR CONDITION Switch the ignition to off. Disconnect the PCM connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion). Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 11.
4		No	Go to the next step.
5	INSPECT MAIN RELAY OUTPUT VOLTAGE Verify that the PCM connector is disconnected. Switch the ignition to ON (engine off). Measure the voltage at the following terminals (wiring harness-side): PCM terminal 1B PCM terminal 1A Is the voltage B+ ?	Yes	Go to Step 9.
5		No	Go to the next step.
6	INSPECT MAIN RELAY Switch the ignition to off. Remove the main relay. Inspect the main relay. (See RELAY INSPECTION .) Is there any malfunction?	Yes	Replace the main relay, then go to Step 11.
6		No	Go to the next step.
7	INSPECT MAIN RELAY POWER SUPPLY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT Main relay is removed. Verify that the PCM connector is disconnected. Measure the voltage at the following terminals (wiring harness-side): Main relay terminal D Main relay terminal A Is the voltage B+ ?	Yes	Reinstall the main relay, then go to the next step.
7		No	Inspect the EGI MAIN 40 A fuse. If the fuse is blown: Repair or replace the wiring harness for a possible short to ground. Replace the fuse. If the fuse is deteriorated: Replace the fuse. If the fuse is normal: Repair or replace the wiring harness for a possible open circuit. Go to Step 11.
8	INSPECT MAIN RELAY CONTROL CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT Verify that the PCM connector is disconnected. Switch the ignition to ON (engine off). Measure the voltage at the following terminals (wiring harness-side): PCM terminal 1B PCM terminal 1A PCM terminal 1Q Is the voltage normal? (See PCM INSPECTION .)	Yes	Go to the next step.
8		No	If the PCM terminal 1B or 1A voltage is not normal: Inspect the ENG INJ 25 A fuse. If the fuse is blown: Repair or replace the wiring harness for a possible short to ground. Replace the fuse. If the fuse is deteriorated: Replace the fuse. If the fuse is normal: Repair or replace the wiring harness for a possible open circuit. If the PCM terminal 1Q voltage is not normal: Repair or replace the wiring harness for a possible short to ground or open circuit. Go to Step 11.
9	INSPECT TP SENSOR NO. 1 Switch the ignition to off. Reconnect all disconnected connectors. Inspect the TP sensor No. 1. (See THROTTLE POSITION (TP) SENSOR INSPECTION .) Is there any malfunction?	Yes	Inspect the TP sensor No. 1 related circuits and connectors. If there is any malfunction: Repair or replace the malfunctioning part according to the inspection results. If there is no malfunction: Replace the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .) Go to Step 11.
9		No	Go to the next step.
10	INSPECT TP SENSOR NO. 2 Inspect the TP sensor No. 2. (See THROTTLE POSITION (TP) SENSOR INSPECTION .) Is there any malfunction?	Yes	Inspect the TP sensor No. 2 related circuits and connectors. If there is any malfunction: Repair or replace the malfunctioning part according to the inspection results. If there is no malfunction: Replace the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .) Go to the next step.
10		No	Go to the next step.
11	VERIFY DTC TROUBLESHOOTING COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE .) Perform the KOER self test. (See KOEO/KOER SELF TEST .) Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION .) Go to the next step.
11		No	Go to the next step.
12	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
12		No	DTC troubleshooting completed.