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. Refer to STANDARD PROCEDURE .
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 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 .