Hybrid Battery Control

HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: P0AC0-123: Hybrid Battery Pack Current Sensor Circuit Range / Performance
P0AC0-123 - Hybrid Battery Pack Current Sensor Circuit Range / Performance

DESCRIPTION

Refer to the description for DTC P0ABF-123 P0ABF.





MONITOR DESCRIPTION

If the battery smart unit detects a malfunction in the battery current sensor, the hybrid vehicle control ECU will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTCS (DTC P0A1F-123 IS OUTPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(d) Check if DTCs are output.

Result





B -- GO TO DTC CHART (P0A1F-123) Hybrid Battery System
A -- Continue to next step.

2. REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

HINT
For the removal and installation procedures related to the HV battery junction block assembly, Removal.

NEXT -- Continue to next step.

3. CLEAR DTC (HV)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(d) Clear the DTCs and freeze frame data.

(e) Perform a road test to charge and discharge the HV battery.

HINT
Two trip detection logic is used. After the first road test, turn the power switch off and perform a road test again.

NEXT -- Continue to next step.

4. RECONFIRM DTC OUTPUT (HV)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(d) Check if DTCs are output.

Result





B -- REPLACE BATTERY SMART UNIT Removal

A -- END (HV BATTERY JUNCTION BLOCK ASSEMBLY IS FAULTY)