TIRE PRESSURE WARNING SYSTEM Tire Pressure Warning Reset Switch Circuit

DTC Code DTC Name
Tire Pressure Warning Reset Switch Circuit

DESCRIPTION

During test mode, when the tire pressure warning reset switch is on, the tire pressure warning light illuminates and when the tire pressure warning reset switch is off, the tire pressure warning light blinks at 0.125 second intervals.

WIRING DIAGRAM

C270966E10

CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake actuator assembly), perform VSC system variant learning, acceleration sensor zero point calibration and tire pressure warning system initialization.

VSC system:Click hereClick here

Tire pressure warning system:Click hereClick here

PROCEDURE

  1. INSPECT TIRE PRESSURE WARNING RESET SWITCH

    1. C239105C04

      *a

      Component without harness connected

      (Tire Pressure Warning Reset Switch)

      *b

      On

      *c

      Off

      Remove the tire pressure warning reset switch.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      1 (INT) - 2 (E)

      On

      Below 1 Ω

      Off

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE TIRE PRESSURE WARNING RESET SWITCH

    Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (RESET SWITCH - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

    1. Disconnect the E42 tire pressure warning reset switch connector.

    2. Disconnect the A39 skid control ECU (brake actuator assembly) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A39-6 (INIT) - E42-1 (INT)

      Always

      Below 1 Ω

      A39-6 (INIT) or E42-1 (INT) - Body ground

      Always

      10 kΩ or higher

      E42-2 (E) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR