Diagnostic Test

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

CHECK FOR SYSTEM VOLTAGE DTCS IN ALL MODULES
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 .

Repair any Low or High Voltage DTCs in HCP, BPCM, PCM, or IDCM before proceeding and recheck operation.
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.
  Are there any system voltage high or low DTCs present in any modules?
  
  Yes
  - Diagnose and repair the low voltage system or battery issue. Erase DTCs and retest.
  - Perform the BATTERY PACK CONTROL MODULE (BPCM) VERIFICATION TEST. Refer to HV VERIFICATION TEST .
  No
  - Go To 2
CHECK HV AND LOW VOLTAGE JUMPER BRIDGE HARNESS FOR CONCERNS
1. Check the HV Battery Pack HV and low voltage harness connections for concerns.
  Are there any problems with the low voltage or HV jumper bridge harness?
  
  Yes
  - Replace the affected harness and recheck operation.
  - Perform the BATTERY PACK CONTROL MODULE (BPCM) VERIFICATION TEST. Refer to HV VERIFICATION TEST .
  No
  - Go To 3
CHECK THE BPCM POWER AND GROUND CIRCUITS
1. Load test the Fused B+ and ground circuits at the BPCM.
  Did the circuits pass a load test?
  
  Yes
  - If all powers and grounds are ok, replace the Primary and Secondary High Voltage Battery Packs in accordance with the Service Information. Refer to HIGH VOLTAGE BATTERY, REMOVAL AND INSTALLATION .
  - Perform the BATTERY PACK CONTROL MODULE (BPCM) VERIFICATION TEST. Refer to HV VERIFICATION TEST .
  No
  - Repair the faulty power or ground circuit. Erase DTCs and retest.
  - Perform the BATTERY PACK CONTROL MODULE (BPCM) VERIFICATION TEST. Refer to HV VERIFICATION TEST .