LEMON Manuals: Even more car manuals for everyone
Home >> Jaguar >> 2014 >> XK Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Speed Control) >> Speed Control (V8 5.0L Petrol/V8 S/C 5.0L Petrol) >> Diagnostic Procedures >> Speed Control >> Pinpoint Tests >> Pinpoint Test A: Speed Control Switch Circuit Tests

Pinpoint Test A: Speed Control Switch Circuit Tests

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: To avoid accidental deployment and possible personal injury, the back-up power supply must be depleted before repairing or replacing any supplemental restraint system (SRS) components. To deplete the back-up power supply energy, disconnect the battery GROUND cable and wait two minutes. Failure to follow this instruction may result in personal injury.
  1. CHECK THE STEERING WHEEL SPEED CONTROL SWITCH FOR OPEN CIRCUIT 
    1. Disconnect the battery negative terminal.
    2. Wait two minutes for the system to become safe.
    3. Disconnect the speed control switch connector SW009.
    4. Measure the resistance between:
      • speed control switch connector SW009, pin 02, component side
      • speed control switch connector SW009, pin 03, component side

    2. Is the resistance 4310 ohms? 

    YES:  Go to step  2.

    NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

  2. CHECK THE STEERING WHEEL SPEED CONTROL RESUME SWITCH CIRCUIT 
    1. Measure the resistance between:
      • speed control switch connector SW009, pin 02, component side
      • speed control switch connector SW009, pin 03, component side
    2. Operate the RESUME  switch.

    Does the resistance switch between 4310 ohms and 2110 ohms when the switch is operated? 

    YES:  Go to step  3.

    NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

  3. CHECK THE STEERING WHEEL SPEED CONTROL SET+ SWITCH CIRCUIT 
    1. Measure the resistance between:
      • speed control switch connector SW009, pin 02, component side
      • speed control switch connector SW009, pin 03, component side
    2. Operate the SET+ switch.

      3. Does the resistance switch between 4310 ohms and 1110 ohms when the switch is operated? 

      YES:  Go to step  4.

      NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

  4. CHECK THE STEERING WHEEL SPEED CONTROL HEADWAY REDUCTION SWITCH CIRCUIT 
    1. Measure the resistance between:
      • speed control switch connector SW009, pin 02, component side
      • speed control switch connector SW009, pin 03, component side
    2. Operate the HEADWAY INCREASE  switch.

    Does the resistance switch between 4310 ohms and 1110 ohms when the switch is operated? 

    YES:  Go to step  5

    NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

  5. CHECK THE STEERING WHEEL SPEED CONTROL HEADWAY INCREASE SWITCH CIRCUIT 
    1. Measure the resistance between:
      • Speed control switch connector SW009, pin 02, component side
      • Speed control switch connector SW009, pin 03, component side
    2. Operate the HEADWAY INCREASE  switch.

    Does the resistance switch between 4310 ohms and 300 ohms when the switch is operated? 

    YES:  Go to step  6.

    NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

    Measure the resistance between:

  6. CHECK THE STEERING WHEEL SPEED CONTROL SET- SWITCH CIRCUIT 
    1. Measure the resistance between:
      • Speed control switch connector SW009, pin 02, component side
      • Speed control switch connector SW009, pin 03, component side
    2. Operate the SET-  switch.

    Does the resistance switch between 4310 ohms and 120 ohms when the switch is operated? 

    YES:  Go to step  7.

    NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

  7. CHECK THE STEERING WHEEL SPEED CONTROL CANCEL SWITCH CIRCUIT 
    1. Measure the resistance between:
      • Speed control switch connector SW009, pin 02, component side
      • Speed control switch connector SW009, pin 03, component side
    2. Operate the CANCEL  switch.

    Does the resistance switch between 4310 ohms and zero ohms when the switch is operated? 

    YES:  Go to step  8.

    NO:  INSTALL a new speed control switch assembly. See Speed Control Switch . TEST the system for normal operation.

  8. CHECK THE STEERING WHEEL SPEED CONTROL SWITCH CIRCUIT FOR OPEN CIRCUIT 
    1. Measure the resistance between:
      • Speed control switch connector SW009, pin 02, harness side
      • Steering wheel audio control switch connector SW004, pin 02, harness side

    Is the resistance greater than 5 ohms? 

    YES:  REPAIR the circuit speed control switch connector SW009, pin 02 to clockspring connector SW004, pin 02. For additional information, refer to the wiring diagrams. TEST the system for normal operation.

    NO:  Go to step  9.

  9. CHECK THE STEERING WHEEL SPEED CONTROL SWITCH FOR OPEN CIRCUIT 
    1. Measure the resistance between:
      • Speed control switch connector SW009, pin 03, harness side
      • Steering wheel audio control switch connector SW004, pin 03, harness side

    Is the resistance greater than 5 ohms? 

    YES:  REPAIR the circuit speed control switch connector SW009, pin 02 to clockspring connector SW004, pin 02. For additional information, refer to the wiring diagrams. TEST the system for normal operation.

    NO:  No fault has been identified with the speed control switch or circuit, check integrity of connections. Refer to the electrical circuit diagrams and test the LIN circuit between the steering wheel audio switch and the instrument cluster. Test the steering wheel audio switch.

scientia non olet · About LEMON Manuals