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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC P0615, P0616, or P0617: Starter Relay Control Circuit >> Component Testing
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Component Testing

Relay Test

  1. Ignition OFF, disconnect the appropriate relay.
  2. Test for 70-150 Ω between terminals (85 or 1) and (86 or 2).
    • If less than 70 or greater than 150 Ω 

      Replace the relay.

    • If between 70-150 Ω 
  3. Test for infinite resistance between the terminals listed below:
    • (30 or 3) and (86 or 2)
    • (30 or 3) and (87 or 5)
    • (30 or 3) and (85 or 1)
    • (85 or 1) and (87 or 5)
    • (86 or 2) and (87 or 5)
    • If less than infinite resistance 

      Replace the relay.

    • If infinite resistance 
  4. Install a 3 A fused jumper wire between relay terminal (85 or 1) and 12 V. Install a jumper wire between relay terminal (86 or 2) and ground.
  5. Test for less than 5.0 Ω between terminals (30 or 3) and (87 or 5).
    • If 5.0 Ω or greater 

      Replace the relay.

    • If less than 5.0 Ω 
  6. All OK