Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
- Ignition - On/Vehicle - In Service Mode
- Verify there are no DTCs set related to the following component/system:
- B34K Charge Air Cooler Coolant Temperature Sensor - Inlet
- B193A Charge Air Cooler Air Temperature Sensor - Inlet
- B193B Charge Air Cooler Air Temperature Sensor - Outlet
- M10 Charge Air Cooler Coolant Pump
- If the DTC is set
- Go to next step: If the DTC is not set
- Verify the following conditions do not exist:
- Incorrect fluid level or condition - Coolant@Charge Air Cooler - Surge Tank - Refer to: Loss of Coolant (with LM2)
- Antifreeze Concentration - Incorrect - Refer to: Charge Air Cooling System Draining and Filling (GE 47716 LM2) , or Charge Air Cooling System Draining and Filling (Static LM2) , or Charge Air Cooling System Draining and Filling (GE 47716 LM2 with RC1) , or Charge Air Cooling System Draining and Filling (Static LM2 with RC1)
- M10 Charge Air Cooler Coolant Pump - Abnormal noise/Leaking/Stuck On/Visible Damage
- Hoses/Lines@Charge Air Cooler - Leaking/Loose Clamps/Visible Damage
- Hoses/Lines@M10 Charge Air Cooler Coolant Pump - Leaking/Loose Clamps/Visible Damage
- If a condition exists
Repair or replace as necessary
- Go to next step: If no condition exists
- Perform the following procedure/test: Component Testing
Verify the procedure/test passes.
- If the procedure/test does not pass
Replace the appropriate component:
- B193A Charge Air Cooler Air Temperature Sensor - Inlet
- B193B Charge Air Cooler Air Temperature Sensor - Outlet
- Go to next step: If the procedure/test passes
- If the procedure/test does not pass
- Perform the scan tool control function: Charge Air Cooler Coolant Pump - Command the component to the maximum position/speed
Verify a condition does not exist with the component: M10 Charge Air Cooler Coolant Pump - Turns Off
- Perform the action while monitoring the parameter:
- Wiggle the harness and connector(s): M10 Charge Air Cooler Coolant Pump
- Wiggle the harness and connector(s): K20 Engine Control Module
- If a condition exists
Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)
- Go to next step: If no condition exists
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify the DTC does not set.
- If the DTC sets
Repeat the procedure starting at step 1
- Go to next step: If the DTC is not set
- If the DTC sets
- All OK.