Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR AN ACTIVE DTC NOTE:
Diagnose any repair and system voltage high DTCs before proceeding with test.
- Start the engine and allow it to idle.
- With a scan tool, read the active DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- CHECK THE (A501) FUSED B+ CIRCUIT AT THE CHARGE AIR COOLER COOLANT PUMP
- Disconnect the Charge Air Cooler Coolant Pump harness connector.
- Turn the ignition on.
- Measure the voltage between ground and the (A501) Fused B+ circuits at the CAC Coolant Pump harness connector.
Is the voltage above 16.5 volts?
Yes
- An over charge condition is present, repair Charging system as necessary.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Replace the Charge Air Cooler Coolant Pump in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .