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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 75 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Liftgate Release Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

Liftgate Latch

  1. Ignition OFF, disconnect the harness connector at the M30 Liftgate Latch.
  2. Install a 10 A fused jumper wire between the control terminal 3 and 12 V. Install a jumper wire between the ground terminal 1 and ground.
  3. Verify the M30 Liftgate Latch activates
    • If the M30 Liftgate Latch does not activate. 

      Replace the M30 Liftgate Latch.

    • If the M30 Liftgate Latch does activate. 
  4. All OK

Liftgate Release Switch

  1. Ignition OFF, disconnect the harness connector at the S46B Liftgate Unlatch Switch.
  2. Test for infinite resistance between the signal terminal 1 and the ground terminal 2 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S46B Liftgate Unlatch Switch.

    • If infinite resistance 
  3. Test for less than 3 Ω between the signal terminal 1 and the ground terminal 2 with the switch in the closed position.
    • If 3 Ω or greater 

      Replace the S46B Liftgate Unlatch Switch.

    • If less than 3 Ω 
  4. All OK

Relay Test

  1. Ignition OFF, disconnect the KR95A Liftgate Unlatch Relay.
  2. Test for 60-200 Ω between terminals 85 and 86.
    • If less than 60 or greater than 200 

      Replace the KR95A Liftgate Unlatch Relay.

    • If between 60-200 Ω 
  3. Test for infinite resistance between the terminals listed below:
    • 30 and 86
    • 30 and 87
    • 30 and 85
    • 85 and 87
    • If less than infinite resistance 

      Replace the KR95A Liftgate Unlatch Relay.

    • If infinite resistance 
  4. Install a 3 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground.
  5. Test for less than 2 Ω between terminals 30 and 87.
    • If 2 Ω or greater  

      Replace the KR95A Liftgate Unlatch Relay.

    • If less than 2 Ω 
  6. All OK