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Home >> Jaguar >> 2003 >> XJR >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Parking Brake And Actuation (2003.5-09) >> Diagnosis and Testing >> Parking Brake - VIN Range: G45171->G99999 >> Pinpoint Tests >> PINPOINT TEST G531320p29: PRIMARY PARKING BRAKE RELEASE SWITCH CIRCUIT FAULT >> G531320t140: CHECK THE SWITCH RESISTANCE

G531320t140: CHECK THE SWITCH RESISTANCE

  1. Measure the resistance between:
    CONNECTOR REFERENCE CHART

    TL82 connector, component side TL82 connector, component side
    Switch release signal 1 - pin 04 Switch return - pin 06
    • Is the resistance between 595 and 611 ohms? 
    • Yes:  An intermittent fault may be present in the wiring harness. Visually check for chaffed wires or other physical damage to the harness. If no fault is found in the circuit, suspect the following component(s): - CR50 - CR32 - EPB module
    • No:  INSTALL a new parking brake switch.

      PARKING BRAKE SWITCH (70.35.46) 

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