Intention of troubleshooting procedure

Step 1-7
- Perform an inspection of the connectors and wiring harnesses between the MAF sensor/IAT sensor No. 1 and the PCM.
Step 8
- Perform a unit inspection of the MAF sensor/IAT sensor No. 1.
Repair completion verification
- Verify that the primary malfunction is resolved and there are no other malfunctions.

TROUBLESHOOTING DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	PURPOSE: VERIFY IF MAF SENSOR/IAT SENSOR No. 1 IS INSTALLED CORRECTLY Verify the MAF sensor/IAT sensor No. 1 installation condition. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [(VIN M) (US)] .) (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [(VIN 7 & VIN L) (US)] .) Is the installation condition normal?	Yes	Go to the next step.
1		No	Correctly install the MAF sensor/IAT sensor No. 1 and perform the repair completion verification. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [(VIN M) (US)] .) (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [(VIN 7 & VIN L) (US)] .)
2	PURPOSE: INSPECT MAF SENSOR/IAT SENSOR No. 1 CONNECTOR FOR MALFUNCTION Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION .) Are the connector and terminal normal?	Yes	Go to the next step.
2		No	Repair or replace the malfunctioning location and perform the repair completion verification.
3	PURPOSE: INSPECT PCM CONNECTOR FOR MALFUNCTION Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION .) Are the connector and terminal normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	PURPOSE: INSPECT MAF SENSOR/IAT SENSOR No. 1 POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT TO GROUND Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION .) Is the circuit normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	PURPOSE: INSPECT MAF SENSOR/IAT SENSOR No. 1 POWER SUPPLY CIRCUITS, SIGNAL CIRCUITS, AND GROUND CIRCUITS FOR OPEN CIRCUIT Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION .) Is the circuit normal?	Yes	Go to the next step.
5		No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	PURPOSE: INSPECT MAF SENSOR/IAT SENSOR No. 1 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION .) Is the circuit normal?	Yes	Go to the next step.
6		No	Repair or replace the malfunctioning location and perform the repair completion verification.
7	PURPOSE: INSPECT MAF SENSOR/IAT SENSOR No. 1 POWER SUPPLY CIRCUITS, SIGNAL CIRCUITS, AND GROUND CIRCUITS FOR SHORT CIRCUIT Inspect the applicable circuits for a short circuit. (See CIRCUIT INSPECTION .) Is the circuit normal?	Yes	Go to the next step.
7		No	Repair or replace the malfunctioning location and perform the repair completion verification.
8	PURPOSE: INSPECT MAF SENSOR/IAT SENSOR No. 1 FOR MALFUNCTION Inspect the applicable part. (See MASS AIR FLOW (MAF) SENSOR INSPECTION [(VIN M) (US)] .) (See MASS AIR FLOW (MAF) SENSOR INSPECTION [(VIN 7 & VIN L) (US)] .) (See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [(VIN M) (US)] .) (See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [(VIN 7 & VIN L) (US)] .) Is the part normal?	Yes	Go to the next step.
8		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [(VIN M) (US)] .) (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [(VIN 7 & VIN L) (US)] .)
Repair completion verification 1	PURPOSE: VERIFY THAT VEHICLE IS REPAIRED Install/connect the part removed/disconnected during the troubleshooting procedure. Clear the DTC recorded in the memory. (See CLEARING DTC .) Replicate the vehicle conditions at the time the DTC was detected using the following procedure. Perform the KOEO or KOER self test. (See DTC INSPECTION .) Perform the DTC inspection for the PCM. (See DTC INSPECTION .) Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US) .) If the CAN communication is normal, perform the diagnosis from Step 1. If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [(VIN M) (US)] .) (See PCM REMOVAL/INSTALLATION [(VIN 7 & VIN L) (US)] .)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED Perform the DTC inspection. (See DTC INSPECTION .) Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.