B11D8:11
High-Voltage Traction Battery
Pinpoint Test AC: DTC B11D8:11
Refer to Wiring Diagram Set 12, Charging System for schematic and connector information. [1][2]Diagrams By Number
Normal Operation
The Battery Energy Control Module (BECM) monitors the impact notification output from the Restraints Control Module (RCM). The RCM (Restraints Control Module) outputs a Pulse-Width Modulation (PWM) voltage on the circuit based on status. If an event is indicated, the BECM (Battery Energy Control Module) will initiate shutdown of the High Voltage Traction Battery (HVTB) system. If the BECM (Battery Energy Control Module) senses a fault on the circuit, it will illuminate the powertrain malfunction (wrench) warning indicator and set a DTC.
- B11D8:11 (Restraint Event Notification: Circuit Short to Ground)- This DTC sets when the BECM (Battery Energy Control Module) detects a short to ground on the event notification signal circuit for 5 seconds or more.
This pinpoint test is intended to diagnose the following:
- Fuel Pump (FP) control module
- RCM (Restraints Control Module)
- BECM (Battery Energy Control Module)
PINPOINT TEST AC : DTC B11D8:11
NOTICE: Use the correct probe adapter(s) from the Flex Probe Kit when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
AC1 CHECK CIRCUIT FOR SHORT TO GROUND
- Ignition OFF.
- Disconnect: BECM (Battery Energy Control Module) C4237A.
- Disconnect: RCM (Restraints Control Module) C310A.
- Disconnect: FP (Fuel Pump) Control Module C446.
- Measure the resistance of BECM (Battery Energy Control Module) C4237A-46, circuit CR167 (YE/VT), harness side to ground.
Is the resistance greater than 10,000 ohms?
Yes
GO to AC2.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
AC2 CHECK BECM (Battery Energy Control Module) DTCs
- Connect: BECM (Battery Energy Control Module) C4237A.
- Connect: RCM (Restraints Control Module) C310A.
- Connect the scan tool.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Clear DTCs- BECM (Battery Energy Control Module).
- Enter the following diagnostic mode on the scan tool: Self Test- BECM (Battery Energy Control Module).
Is DTC B11D8:11 retrieved?
Yes
GO to AC3.
No
INSTALL a new FP (Fuel Pump) control module. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
AC3 RETRIEVE BECM (Battery Energy Control Module) DTCs
- Ignition OFF.
- Disconnect: RCM (Restraints Control Module) C310A.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Clear DTCs- BECM (Battery Energy Control Module).
- Enter the following diagnostic mode on the scan tool: Self Test- BECM (Battery Energy Control Module).
Is DTC B11D8:11 retrieved?
Yes
GO to AC4.
No
INSTALL a new RCM (Restraints Control Module). REFER to Restraints and Safety Systems &/or Air Bag Systems. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
AC4 CHECK FOR CORRECT BECM (Battery Energy Control Module) OPERATION
- Ignition OFF.
- Check the BECM (Battery Energy Control Module) harness and component side connectors for:
- corrosion.
- pushed-out/bent pins.
- Connect the BECM (Battery Energy Control Module) and make sure the connectors seat correctly.
- Connect: RCM (Restraints Control Module) C310A.
- Connect: Fuel Pump (FP) C446.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes
INSTALL a new BECM (Battery Energy Control Module). REFER to Battery Energy Control Module (BECM) . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.