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Gauge Control Module Input Test

NOTE: Before testing, do the gauge control module self-diagnostic function, and make sure the B-CAN communication line is OK.
  1. Turn the ignition switch to LOCK (0).
  1. Remove the gauge control module (A), and disconnect the 32P connector (B) from it.
  1. Inspect the connector and socket terminals to be sure they are all making good contact.
    • If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
    • If the terminals are OK, go to Step 4 .
  1. With the connector still disconnected, make these input tests at the connector.
    Cavity
    Wire
    Test condition
    Test: Desired result
    Possible cause if desired result is not obtained
    13
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • An open in the wire
    17
    BLK
    Under all conditions
    Check for continuity to ground: There should be continuity.
    • Poor ground (G501)
    • An open in the wire
    16
    PNK
    Under all conditions
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 1 (10 A) fuse in the under-dash fuse/relay box
    • Faulty under-dash fuse/relay box
    • An open in the wire
    32
    LT BLU
    Ignition switch ON (II)
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 22 (7.5 A) fuse in the under-dash fuse/relay box
    • Faulty under-dash fuse/relay box
    • An open in the wire
    6
    WHT
    Ignition switch ON (II), and turn signal switch in RIGHT position
    Measure the voltage to ground: There should be battery voltage when the lights are flashing.
    • Faulty under-dash fuse/relay box
    • Faulty combination light switch
    • An open in the wire
    9
    BLU
    Ignition switch ON (II), and turn signal switch in LEFT position
    Measure the voltage to ground: There should be battery voltage when the lights are flashing.
    • Faulty under-dash fuse/relay box
    • Faulty combination light switch
    • An open in the wire
    23
    ORN
    Parking brake lever pulled
    Check for continuity to ground: There should be continuity.
    • Faulty parking brake switch
    • An open in the wire
    Parking brake lever released
    Check for continuity to ground: There should be continuity.
    • Faulty parking brake switch
    • A short to ground in the wire
    24
    GRY
    Brake fluid is lower level in the reservoir
    Check for continuity to ground: There should be continuity.
    • Poor ground (G301) [G302]
    • Faulty brake fluid level switch
    • A short to ground in the wire
    Brake fluid is full level in the reservoir
    Check for continuity to ground: There should be continuity.
    • Poor ground (G301) [G302]
    • Faulty brake fluid level switch
    • An open in the wire
    14*
    GRN
    Ignition switch ON (II), information button pressed
    Measure the voltage to ground: There should be battery voltage.
    • Blown No. 24 (10 A) fuse in the under-dash fuse/relay box
    • Faulty select/reset/information switch
    • An open in the wire
    Ignition switch ON (II), information button released
    Measure the voltage to ground: There should be less than 1 V.
    • Faulty select/reset/information switch
    • A short to power in the wire
    • An open in the wire
    15*
    PUR
    Ignition switch ON (II), select/reset button pressed
    Measure the voltage to ground: There should be battery voltage.
    • Faulty select/reset/information switch
    • An open in the wire
    Ignition switch ON (II), select/reset button released
    Measure the voltage to ground: There should be less than 1 V.
    • Blown No. 24 (10 A) fuse in the under-dash fuse/relay box
    • Faulty select/reset/information switch
    • A short to power in the wire
    • An open in the wire

    [ ]:
    LHD model
    *:
    With multi information display