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Home >> Jaguar >> 2009 >> 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 G531320p24: ACTUATOR OUTPUT OPEN CIRCUIT >> G531320t102: CHECK THE ACTUATOR CIRCUIT RESISTANCE

G531320t102: CHECK THE ACTUATOR CIRCUIT RESISTANCE

  1. Key off.
    Fig 1: Identifying Electric Parking Brake Module Connector Pins 1 (CR50)
    G06387613Courtesy of JAGUAR CARS, INC.
  2. Electric parking brake module connector 1 (CR50) disconnected.
  3. Key on, engine off.
  4. Measure the resistance between:
    CONNECTOR REFERENCE CHART

    CR50 connector, harness side CR50 connector, harness side
    Electric parking brake actuator - positive - Pin 14 Electric parking brake actuator - negative - Pin 07
    • Is the resistance between 0.5 ohms - 1 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): - EPB module - EPB module connector, CR50
    • No:  GO to Pinpoint Test G531320T103 .
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