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Home >> Land Rover >> 2021 >> Range Rover SVAutobiography Dynamic Blk. >> Repair and Diagnosis >> Steering >> Steering Column -- Range Rover/L405 >> Steering Column (G1509121) >> Diagnosis And Testing >> Steering Column (G1878219) >> Pinpoint Tests >> Pinpoint Test G: Steering Wheel (Module And Lin) Open Circuit Tests

Pinpoint Test G: Steering Wheel (Module And Lin) Open Circuit Tests

  1. G1: STEERING WHEEL (MODULE AND LIN) OPEN CIRCUIT TEST 1 
    1. Refer to the appropriate service information and remove the driver airbag DRIVER AIRBAG MODULE
    2. Check the integrity of the wiring harness (clockspring to steering wheel heater control module)

      Is a wiring harness fault present?

      Yes:  Repair the harness as necessary

      No:  GO to  G2.

  2. G2: STEERING WHEEL (MODULE AND LIN) OPEN CIRCUIT TEST 2 
    WARNING: Do not probe or disconnect the airbag connector(s) during this test.
    NOTE: Rotate the steering wheel during this test to check for an intermittent fault.
    1. Disconnect clockspring connector C2R115B
    2. Disconnect clockspring connector C2LS41H
    3. Set a multimeter to measure resistance
    4. Connect the multimeter to clockspring connector C2R115B terminal 4 and clockspring connector C2LS41H terminal 7

      Does the multimeter display > 0 ohms?

      Yes:  Install a new clockspring

      No:  GO to  G3.

  3. G3: STEERING WHEEL (MODULE AND LIN) OPEN CIRCUIT TEST 3 
    WARNING: Do not probe or disconnect the airbag connector(s) during this test.
    NOTE: Rotate the steering wheel during this test to check for an intermittent fault.
    1. Connect the multimeter to clockspring connector C2R115B terminal 1 and clockspring connector C2LS41H terminal 8

      Does the multimeter display > 0 ohms?

      Yes:  Install a new clockspring

      No:  GO to  G4.

  4. G4: STEERING WHEEL (MODULE AND LIN) OPEN CIRCUIT TEST 4 
    WARNING: Do not probe or disconnect the airbag connector(s) during this test.
    NOTE: Rotate the steering wheel during this test to check for an intermittent fault.
    1. Connect the multimeter to clockspring connector C2R115B terminal 2 and clockspring connector C2LS41H terminal 4

      Does the multimeter display > 0 ohms?

      Yes:  Install a new clockspring

      No:  Install a new steering wheel heater control module