DTC P0660 [WL-C, WE-C]

id0102b9833800

DTC P0660

Intake shutter solenoid valve (full close) control circuit open
DETECTION CONDITION
•  The PCM monitors the intake shutter solenoid valve (full close) control signal. If the following conditions are detected, the PCM determines that the intake shutter solenoid valve (full close) control circuit has a malfunction.
―  The PCM turns the intake shutter solenoid valve (full close) off, but the intake shutter solenoid valve (full close) control voltage is less than 5 V for 2 s (open circuit)
―  The PCM internal driver IC temperature is more than 150 °C {320 °F} when the intake shutter solenoid valve (full close) is on
POSSIBLE CAUSE
•  Connector or terminal malfunction
•  Open circuit in wiring harness between intake shutter solenoid valve (full close) terminal A and main relay
•  Intake shutter solenoid valve (full close) malfunction
•  Open circuit in wiring harness between intake shutter solenoid valve (full close) terminal B and PCM terminal 152
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED SERVICE 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
VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
•  Connect the M-MDS to the DLC-2.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Run the vehicle under the FREEZE FRAME DATA stored condition.
•  Is the same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists.
Perform the “INTERMITTENT CONCERNS TROUBLESHOOTING”.
(See INTERMITTENT CONCERN TROUBLESHOOTING [WL-C, WE-C].)
4
INSPECT INTAKE SHUTTER SOLENOID VALVE (FULL CLOSE) CONNECTOR FOR POOR CONNECTION
•  Turn the engine switch off.
•  Disconnect the intake shutter solenoid valve (full close) connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 9.
No
Go to the next step.
5
INSPECT INTAKE SHUTTER SOLENOID VALVE (FULL CLOSE) CONTROL CIRCUIT FOR OPEN CIRCUIT
•  Turn the engine switch to the ON position (Engine off).
•  Measure the voltage between intake shutter solenoid valve (full close) terminal A (wiring harness-side) and body ground
•  Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 9.
6
INSPECT INTAKE SHUTTER SOLENOID VALVE (FULL CLOSE)
•  Inspect the intake shutter solenoid valve (full close).
•  Is there any malfunction?
Yes
Replace the intake shutter solenoid valve (full close), then go to Step 9.
(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [WL-C, WE-C].)
No
Go to the next step.
7
INSPECT PCM CONNECTOR FOR POOR CONNECTION
•  Turn the engine switch off.
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 9.
No
Go to the next step.
8
INSPECT INTAKE SHUTTER SOLENOID VALVE (FULL CLOSE) CONTROL CIRCUIT FOR OPEN CIRCUIT
•  Turn the engine switch off.
•  Inspect for continuity between intake shutter solenoid valve (full close) terminal B (wiring harness-side) and PCM terminal 152 (wiring harness-side)
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
9
VERIFY TROUBLESHOOTING OF DTC P0660 COMPLETED
•  Turn the engine switch off.
•  Make sure to reconnect all disconnected connectors.
•  Turn the engine switch to the ON position (Engine off).
•  Clear the DTC from the memory using the M-MDS.
•  Run the vehicle under the FREEZE FRAME DATA stored condition.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [WL-C, WE-C].)
No
Go to the next step.
10
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “After Repair Procedure“.
•  Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
(See DTC TABLE [WL-C, WE-C].)
No
Troubleshooting completed.