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DTC P0662 [LF, L3]

id0102a18218a3

DTC P0662 | Variable intake-air solenoid valve circuit high input
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DETECTION CONDITION | • The PCM monitors the variable intake-air solenoid valve control signal. If the PCM turns variable intake-air solenoid valve on but voltage still remains high, the PCM determines that the variable intake-air solenoid valve circuit has a malfunction. Diagnostic support note • This is a continuous monitor (other). • The MIL does not illuminate. • PENDING CODE is available if the PCM detects the above malfunction condition. • FREEZE FRAME DATA is not available. • Are any DTCs is stored in the PCM memory.
POSSIBLE CAUSE | • Variable intake-air solenoid valve malfunction • Short to power supply in wiring harness between variable intake-air solenoid valve terminal B and PCM terminal 2J • Shorted variable intake-air solenoid valve or PCM connector • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record the FREEZE FRAME on the repair order, then go to the next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service information. If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | INSPECT VARIABLE INTAKE-AIR SOLENOID VALVE CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the variable intake-air solenoid valve connector. • Inspect for poor connection (damaged/pulled-out pins, corrosion, etc.). • Is there malfunction? | Yes | Repair or replace the terminal, then go to Step 7.
No | Go to the next step.
4 | INSPECT VARIABLE INTAKE-AIR SOLENOID VALVE MALFUNCTION • Perform the variable intake-air solenoid valve inspection. (See VARIABLE INTAKE AIR SOLENOID VALVE INSPECTION [LF, L3].) • Is the variable intake-air solenoid valve normal? | Yes | Go to the next step.
No | Replace the variable intake-air solenoid valve, then go to Step 7.
5 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection at terminal 2J. (such as damaged/pulled-out pins, corrosion). • Is there malfunction? | Yes | Repair the terminal, then go to Step 7.
No | Go to the next step.
6 | INSPECT VARIABLE INTAKE-AIR SOLENOID VALVE CONTROL CIRCUIT SHORT TO POWER SUPPLY • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between variable intake-air solenoid valve terminal B (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Repair or replace the wiring harness for short to power supply, then go to the next step.
No | Go to the next step.
7 | VERIFY TROUBLESHOOTING OF DTC P0662 COMPLETED • Make sure to reconnect all disconnected connectors. • Turn the ignition switch to the ON position (Engine off). • Clear the DTC from the PCM memory using the WDS or equivalent. • Perform the KOEO or KOER self-test. (See KOEO/KOER SELF TEST [L8, LF, L3].) • Is the DTC P0662 present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L8, LF, L3].)
No | Go to the next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L8, LF, L3].) • Are any DTC present? | Yes | Go to the applicable DTC troubleshooting. (See DTC TABLE [L8, LF, L3].)
No | Troubleshooting completed.