Service Information

Volt

DTC P1F17

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P1F17: System Isolation/Impact Sensor Fault - Hybrid/EV Battery System Contactors Open

The hybrid/EV powertrain control module 2 will set DTC P1F17 if the hybrid/EV powertrain control module has detected a passive loss of isolation, the supplemental inflatable restraint sensors are not working or has lost communication with the hybrid/EV powertrain control module or the supplemental inflatable restraint module.

Conditions for Running the DTC

•	Vehicle ON.

•	The 12 V battery voltage is greater than 9 V.

Conditions for Setting the DTC

•	P0AA6 is set in the hybrid/EV powertrain control module.

•	DTCs B0083-B0088 are set in the supplemental inflatable restraint module.

•	P0AA6 is set in the hybrid/EV powertrain control module.

•	DTC U184E is set.

•	The hybrid/EV powertrain control module 2 has lost communication with the hybrid/EV powertrain control module.

•	DTC U184E is set.

•	The hybrid/EV powertrain control module 2 has lost communication with the hybrid/EV powertrain control module.

•	DTCs B0083-B0088 are set in the supplemental inflatable restraint module.

Action Taken When the DTC Sets

•	DTC P1F17 is a type A DTC.

•	All of the contactors will be prevented from closing.

Conditions for Clearing the DTC

•	DTC P1F17 is a type A DTC.

•	The Clear Secured High-Voltage DTCs reset function must be performed with a scan tool before clear codes.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Danger: Any hybrid/EV battery pack replacement shall be performed by High-Voltage Qualified Technicians only. The replacement procedure can be found in the service instruction and must be strictly followed at all times. The High-Voltage Qualified Technician is responsible for adherence to the manufacturer's service instructions as well as current national legal regulations. If the hybrid/EV battery pack needs to be replaced contact the Technical Assistance Centre for further instructions prior to removal of the battery pack.

Verify that no other DTCs are set.

⇒	If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

Verify that the K36 inflatable restraint sensing and diagnostic module is programmed with the correct software calibration.

⇒	If the correct software is not installed, program the K36 inflatable restraint sensing and diagnostic module.

Vehicle in Service Mode, observe the scan tool Crash Event Detected parameter. The reading should be No.

⇒	If the reading is yes, perform the Clear Secured High-Voltage DTCs function.

Perform the Clear Secured High-Voltage DTCs function. If DTC P1F17 resets and no other DTCs are set, replace the K114B hybrid/EV powertrain control module 2.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for hybrid/EV powertrain control module 2 and inflatable restraint sensing and diagnostic module replacement, programming and set-up