Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR DTC
1. Turn ignition switch ON.
2. Connect CONSULT and check for "current" "ENGINE" diagnostic trouble codes.
3. Check for current DTC P22CB-00 on the CONSULT screen.
Is applicable DTC current?

YES

GO TO 2 .

NO

Refer to Intermittent Incident .
INSPECT COMPRESSOR BYPASS VALVE SOLENOID AND ELECTRICAL CONNECTIONS
1. Turn ignition switch OFF.
2. Disconnect the compressor bypass actuator solenoid connector.
3. Inspect connector for the following:
  - Loose connector.
  - Corroded pins.
  - Bent or broken pins.
  - Pushed back or expanded pins.
  - Moisture in or on the connector.
  - Missing or damaged connector seals.
  - Dirt or debris on or in the connector pins.
  - Connector shell broken.
  - Wire insulation damage.
  - Damaged connector locking tab.
Is the inspection result normal?

YES

GO TO 3 .

NO

Repair or replace error-detected parts.
CHECK THE CIRCUIT RESPONSE
1. Turn ignition switch ON.
2. Wait 30 seconds.
3. Using CONSULT, check for current "ENGINE" diagnostic trouble codes.
Did DTC P22CC-00 become current and P22CB-00 become past?

YES

GO TO 4 .

NO

GO TO 5 .
CHECK DTC AND VERIFY VALVE CONDITION
1. Turn ignition switch OFF.
2. Connect all harness connectors.
3. Turn ignition switch ON and wait 30 seconds.
4. Using CONSULT, check for current "ENGINE" diagnostic trouble codes.
Is P22CB-00 DTC current?

YES
- Replace the compressor bypass valve solenoid. Refer to Removal and Installation .
- GO TO 8 .
NO
- The removal and installation of the connector corrected the issue.
- GO TO 8 .
INSPECT ECM AND ELECTRICAL CONNECTIONS
1. Turn ignition switch OFF.
2. Disconnect the ECM connector F101.
3. Inspect the connector for the following:
  - Loose connector.
  - Corroded pins.
  - Bent or broken pins.
  - Pushed back or expanded pins.
  - Moisture in or on the connector.
  - Missing or damaged connector seals.
  - Dirt or debris on or in the connector pins.
  - Connector shell broken.
  - Wire insulation damage.
  - Damaged connector locking tab.
Is the inspection result normal?

YES

GO TO 6 .

NO
- Repair or replace error-detected parts.
- GO TO 8 .
CHECK THE ECM RESPONSE
1. Turn ignition switch ON.
2. Wait 30 seconds.
3. Using CONSULT, check for current "ENGINE" diagnostic trouble codes.
Did DTC P22CC-00 become current and P22CB-00 become past?

YES

GO TO 7 .

NO
- Replace the ECM. Refer to Removal and Installation .
- GO TO 8 .
CHECK FOR CURRENT DTC
1. Turn ignition switch OFF.
2. Connect all harness connectors.
3. Turn ignition switch ON.
4. Wait 30 seconds.
5. Using CONSULT, check for current "ENGINE" diagnostic trouble codes.
Is P22CB-00 DTC current?

YES
- Repair or replace the engine harness for a short.
- GO TO 8 .
NO
- The removal and installation of the connector corrected the issue.
- GO TO 8 .
ERASE CURRENT DTCS
1. Using CONSULT, erase "ENGINE" diagnostic trouble codes.
2. Operate the engine within the "Conditions for Clearing DTC".
3. Using CONSULT, check for current "ENGINE" diagnostic trouble codes.
Is P22CB-00 DTC current?

YES

Return to Diagnosis Procedure. Refer to DTC Description .

NO

Repair complete.