MULTI-MODE MANUAL TRANSAXLE SYSTEM, Diagnostic DTC:P0900

DTC Code DTC Name
P0900 Clutch Actuator Circuit

DESCRIPTION

The clutch actuator is operated by the TCM and engages and disengages the clutch by the push rod movement of the clutch actuator. An electric motor moves the push rod, and the clutch stroke sensor, which is mounted on the clutch actuator assembly, detects the push rod position. The TCM monitors the electrical current and clutch motor output terminal voltage, and detects malfunctions in the clutch motor circuit.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Memory

P0900

Clutch Actuator Circuit

The TCM detects the following conditions:

(1-trip detection logic)

  1. Clutch motor is not energized.

  2. Voltages of clutch motor terminal (MCL+ or MCL-) is less than 0.5 V*1, or more than threshold*2 for 0.5 seconds.

The TCM detects the following conditions:

(1-trip detection logic)

  1. Clutch motor is energized.

  2. Target clutch motor current is more than 5 A.

  3. Actual clutch motor current is less than 1 A*3.

The TCM detects the following conditions:

(1-trip detection logic)

  1. Clutch motor is not energized.

  2. Difference between maximum and minimum voltages of clutch motor terminal (MCL+ or MCL-) is more than threshold*4 for 0.5 seconds.

  • Clutch actuator assembly (clutch motor)

  • Open or short in clutch motor circuit

  • TCM

Does not come on

Comes on

DTC stored

  • *1: A short between the clutch motor circuit and the body ground is suspected.

  • *2: A short between the clutch motor circuit and the +B circuit is suspected.

  • *3: An open in the clutch motor circuit is suspected. When the motor current does not flow to the TCM terminals despite the TCM ordering the clutch motor to operate, the TCM stores this DTC.

  • *4: An open in the clutch motor circuit is suspected. When the difference is more than the threshold despite the TCM not ordering the clutch motor to operate, the TCM stores this DTC.

WIRING DIAGRAM

C279536E05

CAUTION / NOTICE / HINT

Note:

  • When installing a clutch actuator, make sure that the clamp position of the clutch actuator has already been in the adjusted position.

    • It is not necessary to adjust the clamp position of a new clutch actuator (service supply part) as it will already be in the adjusted position.

    • When reusing the clutch actuator, make sure that the clamp position of the clutch actuator has already been in the adjusted position when removing the clutch actuator.

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  • In clutch stroke sensor or clutch actuator assembly replacement, perform initialization and learning of the multi-mode manual transaxle system after installing the sensor or actuator.

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    If the sensor or actuator is installed without performing initialization and learning, it may cause driving performance degradation or system component breakage.

PROCEDURE

  1. INSPECT TCM (MCL TERMINAL VOLTAGE)

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    Result

    Proceed to

    OK

    NG
    OK

    CHECK INTERMITTENT PROBLEMS

    Click here

    NG

  2. CHECK TERMINAL CONDITION (TCM)

    Click here

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CORRECTLY

    OK

  3. INSPECT CLUTCH ACTUATOR CIRCUIT

    Click here

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE TCM

    1. Replace the TCM.

      Click here

    NG

  4. CHECK TERMINAL CONDITION (CLUTCH ACTUATOR)

    Click here

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CORRECTLY

    OK

  5. CHECK HARNESS AND CONNECTOR (TCM - CLUTCH ACTUATOR)

    Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT CLUTCH ACTUATOR ASSEMBLY

    Click here

    Result

    Proceed to

    OK

    NG
    OK

    CHECK INTERMITTENT PROBLEMS

    Click here

    NG

    REPLACE CLUTCH ACTUATOR ASSEMBLY

    1. Replace the clutch actuator assembly.

      Click here