SFI SYSTEM, Diagnostic DTC:P2090 and P2091

DTC Code DTC Name
P2090 B Camshaft Position Actuator Control Circuit Low Bank 1
P2091 B Camshaft Position Actuator Control Circuit High Bank 1

DESCRIPTION

Refer to DTC P000B.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P2090

B Camshaft Position Actuator Control Circuit Low Bank 1

Open or short to ground in camshaft timing oil control valve assembly (for exhaust camshaft) circuit.

  • Camshaft timing oil control valve assembly (for exhaust camshaft)

  • Wire harness or connector

  • ECM

Comes on

DTC stored

P2091

B Camshaft Position Actuator Control Circuit High Bank 1

Short to +B in camshaft timing oil control valve assembly (for exhaust camshaft) circuit.

  • Camshaft timing oil control valve assembly (for exhaust camshaft)

  • Wire harness or connector

  • ECM

Comes on

DTC stored

MONITOR DESCRIPTION

These DTCs are stored when a malfunction is detected in the camshaft timing oil control valve assembly (for exhaust camshaft) circuit. If there is an open or short in the camshaft timing oil control valve assembly (for exhaust camshaft) circuit, the ECM will illuminate the MIL and store a DTC.

WIRING DIAGRAM

Refer to DTC P000A.

Click here

CAUTION / NOTICE / HINT

Note:

If any variable valve timing system related parts have been repaired or replaced, perform Vanos Learning Value Reset.

Click here

PROCEDURE

  1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT)

    1. Inspect the camshaft timing oil control valve assembly (for exhaust camshaft).

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT)

    Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) - ECM)

    1. Disconnect the camshaft timing oil control valve assembly (for exhaust and intake camshaft) connectors.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      B37-1 - B55-18 (OE1-)

      Always

      Below 1 Ω

      B37-2 - B55-17 (OCV+)

      Always

      Below 1 Ω

      B37-1 or B55-18 (OE1-) - Body ground and other terminals

      Always

      10 kΩ or higher

      B37-2, B47-2 or B55-17 (OCV+) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR