P0AF8

P310 HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: P0AF8: Hybrid Battery System Voltage

DTC P0AF8 - Hybrid Battery System Voltage

DESCRIPTION
- The HV control ECU detects error signals, alerts the driver, and performs fail-safe control based on the detected signals.
- This DTC is output if the HV battery is discharged, the HV control system has a malfunction, or the shift lever is left in the N position.





MONITOR DESCRIPTION

If the battery smart unit detects voltage drop in the HV battery, the HV control ECU illuminates the MIL and sets a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC OUTPUT (HV)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Read output DTCs Hybrid Battery System.
Result:






B -- GO TO DTC CHART (P0AF8, P3000-388, P3000-389)
A -- Continue to next step.
2. CHECK ENGINE START
(a) Put the vehicle into the READY-on state. Check if the engine starts.
Result:






B -- REPLACE HV BATTERY
A -- LEAVE VEHICLE IN P POSITION, AND CHARGE HV BATTERY IN IDLE STATUS UNTIL IDLING STOPS