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Component Testing

Coolant Pump Relay

  1. Ignition OFF, disconnect the INCLR relay.
  2. Test for 135-174 Ω between terminals 85 and 86.
    • If the resistance is not within the specified range, replace the relay.
  3. Test for infinite resistance between the following terminals:
    • 30 and 86
    • 30 and 87
    • 30 and 85
    • 85 and 87
    • If not the specified value, replace the relay.
  4. Install a 10A fused jumper wire between relay terminal 85 and 12V. Install a jumper wire between relay terminal 86 and ground. Test for less than 2Ω between terminals 30 and 87.
    • If greater than the specified range, replace the relay.

CAC Pump Dynamic Test

  1. Install a 10A fused jumper wire between the B+ terminal B and 12V.
  2. Install a jumper wire between the ground terminal A and ground.
  3. Observe for the CAC pump to activate.
    • If the CAC pump does not activate, replace the CAC pump
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