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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P040B - P204D)) >> Diagnostic Information And Procedures >> DTC P0685, P0686, P0687, P0689, P0690 Or P1682: Engine Controls Ignition Relay/Ignition 1 Switch Circuit 2 >> Component Testing >> Relay Test

Relay Test

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, disconnect the KR75 Engine Controls Ignition Relay.
  2. Test for 70 - 110 Ω between terminals 1 and 2:
    • If less than 70 Ω or greater than 110 Ω 

      Replace the KR75 Engine Controls Ignition Relay.

    • Go to next step: If between 70 - 110 Ω 
  3. Test for infinite resistance between the terminals listed below:
    • 3 and 2
    • 3 and 5
    • 3 and 1
    • 1 and 5
    • If less than infinite resistance 

      Replace the KR75 Engine Controls Ignition Relay.

    • Go to next step: If infinite resistance 
  4. Install a 20 A fused jumper wire between relay terminal 1 and 12 V. Install a jumper wire between relay terminal 2 and ground.
  5. Test for less than 2 Ω between terminals 3 and 5.
    • If 2 Ω or greater 

      Replace the KR75 Engine Controls Ignition Relay.

    • Go to next step: If less than 2 Ω 
  6. All OK.
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