Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
WARNING:
On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury.

Read the HIGH-VOLTAGE SAFETY PROCEDURES. Refer to HIGH VOLTAGE SAFETY PROCEDURES .

When the HIGH-VOLTAGE POWER-DOWN PROCEDURE is necessary. Refer to HIGH VOLTAGE POWER DOWN .
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10.0 seconds.
5. Turn the ignition on.
6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the appropriate INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK FOR OTHER DTCS
1. Refer to the recorded DTCs. Check for any cooling system or cooling pump DTCs
  Were there any cooling system DTCs?
  
  Yes
  - Repair the DTCs in accordance with the Service Information.
  - Perform the Hybrid Control Processor (HCP) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE BATTERY COOLING LOOP FOR CONCERNS
1. Check the Battery coolant level, add as required.
2. Check the Battery Cooling loop for leaks and restrictions.
3. Check the Battery Coolant Pump for proper operation.
  Are there any problems found?
  
  Yes
  - Repair the cooling system concern and refill the coolant in accordance with the Service Information.
  - Perform the Hybrid Control Processor (HCP) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Battery Coolant Heater (BCH) in accordance with the Service information. Refer to HEATERS, REMOVAL AND INSTALLATION .
  - Perform the Hybrid Control Processor (HCP) VERIFICATION TEST. Refer to STANDARD PROCEDURE .