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Home >> Subaru >> 2023 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System (Diagnostics) >> Diagnostic Procedure with Cancel Code >> 14

Diagnostic Procedure with Cancel Code: 14

Detected when the select lever is shifted to the neutral position, or when an error related to the neutral position switch occurs.

Trouble symptom: 

Cruise control cannot be set.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to CRUISE CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

Wiring diagram: 

Cruise control system Ref. to WIRING SYSTEM>CRUISE CONTROL SYSTEM>WIRING DIAGRAM .

G16528323Courtesy of SUBARU OF AMERICA, INC.
  1. CHECK NEUTRAL POSITION SWITCH CIRCUIT  .
    1. Turn the ignition switch to OFF.
    2. Disconnect the neutral position switch connector. Ref. to MANUAL TRANSMISSION>SWITCHES AND HARNESS>REMOVAL .
    3. Turn the ignition switch to ON.
    4. Measure the voltage between neutral position switch connector and chassis ground.

      Connector & terminal 

      (B117) No. 2 (+) - Chassis ground (-):

    Is the voltage 10 V or more?

    Yes:  Go to  2.

    No:  Check for open or short in the harness between neutral position switch and ECM.

  2. CHECK NEUTRAL POSITION SWITCH CIRCUIT  .
    1. Turn the ignition switch to OFF.
    2. Disconnect the ECM connector. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)>REMOVAL .
    3. Measure the resistance between neutral position switch connector and ECM.

      Connector & terminal 

      (B117) No. 1 - (B62) No. 50:

    Is the resistance less than 10 Ω?

    Yes:  Go to  3.

    No:  Repair the harness.

  3. PERFORM UNIT INSPECTION OF NEUTRAL POSITION SWITCH  .

    Check the neutral position switch. Ref. to MANUAL TRANSMISSION>SWITCHES AND HARNESS>INSPECTION .

    Is the check result OK?

    Yes:  Replace the ECM.

    Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM) .

    No:  Replace the neutral position switch. Ref. to MANUAL TRANSMISSION>SWITCHES AND HARNESS>INSTALLATION .