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DTC P2089 [L3 Turbo]

id0102b7810700

DTC P2089 | OCV actuator circuit high
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DETECTION CONDITION | • PCM monitors the OCV voltage. If the PCM detects that the OCV control voltage (calculated from OCV) is above the threshold voltage (calculated from battery positive voltage), the PCM determines that the OCV circuit has a malfunction. Diagnostic support note • This is a continuous monitor (CCM). • 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 | • Poor connection at the PCM and/or OCV connectors • Short to the power supply in the wiring harness between OCV terminal A and PCM terminal 4S • OCV malfunction • 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 DATA 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 OCV CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to off. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 7.
No | Go to the next step.
4 | INSPECT OCV • Perform the OCV inspection. (See OIL CONTROL VALVE (OCV) INSPECTION [L3 Turbo].) • Is the OCV normal? | Yes | Go to the next step.
No | Replace the OCV, then go to Step 7.
5 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to off. • Disconnect the PCM connector. • Inspect for poor connection at PCM terminal 4S. (such as damaged, pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair terminal, then go to Step 7.
No | Go to the next step.
6 | INSPECT OCV CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY • Remove the OCV. • Turn the ignition switch to the ON position (Engine off). • Measure voltage between PCM terminal 4S and body ground. • Is the voltage B+? | Yes | Repair or replace the wiring harness for a short to power supply, then go to the next step.
No | Go to the next step.
7 | VERIFY TROUBLESHOOTING OF DTC P2089 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the WDS or equivalent. • Turn the ignition switch to off. • Start the engine and warm it up completely. • Is the PENDING CODE for this DTC present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L3 Turbo].)
No | Go to the next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L3 Turbo].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [L3 Turbo].)
No | Troubleshooting completed.