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Home >> Jaguar >> 2004 >> 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 G531320p10: PRIMARY APPLY SWITCH CIRCUIT SHORT CIRCUIT TO GROUND >> G531320t44: CHECK THE PRIMARY APPLY SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND

G531320t44: CHECK THE PRIMARY APPLY SIGNAL CIRCUIT FOR SHORT CIRCUIT TO GROUND

  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 Vehicle battery
    Electric parking brake switch apply 1 - signal - Pin 10 Negative terminal
    • Is the resistance greater than 100 Kohms? 
    • 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 G531320T45 .
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