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DTC P0661 [L3]

BME010200600W01

DTC P0661 | VIS control solenoid valve circuit low input
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DETECTION CONDITION | • PCM monitors VIS control solenoid valve control signal at PCM terminal 4R. If PCM turns VIS control solenoid valve off but voltage at PCM terminal 4R still remains low, PCM determines that VIS control solenoid valve circuit has malfunction.
POSSIBLE CAUSE | • VIS control solenoid valve malfunction • Open circuit in wiring between main relay and VIS control solenoid valve terminal A • Open circuit in wiring between VIS control solenoid valve terminal B and PCM terminal 4R • Short to ground in wiring between VIS control solenoid valve terminal B and PCM terminal 4R
• Poor connection at VIS control solenoid valve or PCM connector
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | PERFORM DTC CONFIRMATION PROCEDURE • Perform DTC CONFIRMATION PROCEDURE. (See DTC CONFIRMATION PROCEDURE [L3].) • Is same DTC present? | Yes | Go to next step.
No | Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [L3].)
2 | INSPECT VIS CONTROL SOLENOID VALVE CONNECTOR FOR POOR CONNECTION • Turn ignition key to OFF. • Disconnect VIS control solenoid valve connector. • Inspect for poor connection (damaged/pulled-out pins, corrosion, etc.). • Is there any malfunction? | Yes | Repair or replace terminal, then go to Step 8.
No | Go to next step.
3 | INSPECT VIS CONTROL SOLENOID VALVE MALFUNCTION • Perform VIS control solenoid valve inspection. (See VARIABLE INTAKE-AIR SYSTEM (VIS) CONTROL SOLENOID VALVE INSPECTION [L3].) • Is VIS control solenoid valve okay? | Yes | Go to next step.
No | Replace VIS control solenoid valve, then go to step 8.
4 | INSPECT VIS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT FOR OPEN • Turn ignition key to ON (Engine OFF). • Measure voltage between VIS control solenoid valve terminal A (harness-side) and body ground. • Is voltage B+? | Yes | Go to next step.
No | Repair or replace harness for open, then go to Step 8.
5 | INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND • Inspect continuity between VIS control solenoid valve terminal B (harness-side) and body ground. • Is there continuity? | Yes | Repair or replace harness for short to ground, then go to Step 8.
No | Go to next step.
6 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect PCM connector. • Inspect for poor connection at terminal 4R. (damaged/pulled-out pins, corrosion, etc.). • Is there any malfunction? | Yes | Repair terminal, then go to Step 8.
No | Go to next step.
7 | INSPECT VIS CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR OPEN • Inspect for continuity between VIS control solenoid valve terminal B (harness-side) and PCM terminal 4R (harness-side). • Is there continuity? | Yes | Go to next step.
No | Repair or replace harness for open, then go to next step.
8 | VERIFY TROUBLESHOOTING OF DTC P0661 COMPLETED • Make sure to reconnect all disconnected connectors. • Turn ignition key to ON (Engine OFF). • Clear DTC from PCM memory using WDS or equivalent. • Perform KOER self-test.
(See KOEO/KOER SELF-TEST PROCEDURE [L3].)
• Is same DTC present?
Yes
Replace PCM, then go to next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | Go to next step.
9 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L3].) • Is there any DTC present? | Yes | Go to applicable DTC troubleshooting. (See DTC TABLE [L3].)
No | Troubleshooting completed.