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DTC P2622 [MZR-CD (RF Turbo)]

id0102f1119200

DTC P2622 | Intake shutter valve position sensor circuit high output
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DETECTION CONDITION | • The PCM monitors the intake shutter valve position sensor circuit voltage while the engine is running. If the PCM detects the circuit voltage is more than 4.82 V, the PCM determines that there is a malfunction in the intake shutter valve position sensor circuit. Diagnostic support note • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA is available. • DTCs are stored in the PCM memory.
POSSIBLE CAUSE | • Intake shutter valve position sensor malfunction • Connector or terminal malfunction • Open circuit between intake shutter valve position sensor terminal C and PCM terminal 70 • Open circuit between intake shutter valve position sensor terminal F and PCM terminal 86 • Short to constant voltage in the supply circuit between intake shutter valve position sensor terminal F and PCM terminal 86

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record FREEZE FRAME DATA on the repair order, then go to the next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Check for related Service Bulletins and/or on-line repair information availability. • Is any related repair information available? | Yes | Perform the repair or diagnosis according to the available repair 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 WDS or equivalent to the DLC-2. • Clear the DTC from the PCM memory using the WDS or equivalent. • Start the engine. • Is the same DTC present? | Yes | Go to the next step.
No | Intermittent concern exists. Perform the "INTERMITTENT CONCERN TROUBLESHOOTING". (See INTERMITTENT CONCERN TROUBLESHOOTING [MZR-CD (RF Turbo)].)
4 | INSPECT INTAKE SHUTTER VALVE POSITION SENSOR CONNECTOR FOR POOR CONNECTION • Disconnect the APP sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair or replace the suspected terminal, then go to Step 10.
No | Go to the next step.
5 | INSPECT INTAKE SHUTTER VALVE POSITION SENSOR • Perform the intake shutter valve position sensor inspection. (See INTAKE SHUTTER VALVE POSITION SENSOR INSPECTION [MZR-CD (RF Turbo)].) • Is the intake shutter valve position sensor normal? | Yes | Go to the next step.
No | Replace the intake shutter valve, then go to Step 10. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
6 | INSPECT INTAKE SHUTTER VALVE POSITION SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY SIGNAL • Turn engine switch to the ON position (Engine off). • Measure the voltage between intake shutter valve position sensor terminal F (harness-side) and body ground. • Is the voltage more than 4.82 V? | Yes | Repair or replace for a short to power supply. Then, go to Step 10.
No | Go to the next step.
7 | VERIFY INTAKE SHUTTER VALVE POSITION SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT • Disconnect the PCM connector. • Inspect for continuity between following the terminal: - Intake shutter valve position sensor terminal C (harness-side) and PCM terminal 70 (harness-side). - Intake shutter valve position sensor terminal F (harness-side) and PCM terminal 86 (harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the suspected wiring harness, then go to the next step.
8 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair the terminal, then go to Step 10.
No | Go to the next step.
9 | VERIFY INTAKE SHUTTER VALVE POSITION SENSOR CIRCUIT FOR SHORT TO CONSTANT VOLTAGE CIRCUIT • Inspect for continuity between intake shutter valve position sensor terminals E and F (harness-side). • Is there continuity? | Yes | Repair or replace the suspected wiring harness, then go to the next step.
No | Go to the next step.
10 | VERIFY TROUBLESHOOTING OF DTC P2622 COMPLETED • Make sure to reconnect all disconnected connectors. • Turn engine switch to the ON position (Engine off). • Clear the DTC from the PCM memory using the WDS or equivalent. • Start the engine and warm it up completely. • Is the same DTC present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No | Go to the next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [MZR-CD (RF Turbo)].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZR-CD (RF Turbo)].)
No | Troubleshooting completed.