P0AFC-150

P313 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0AFC-150: Hybrid Battery Pack Sensor Module
P0AFC-150 - Hybrid Battery Pack Sensor Module

DESCRIPTION

The hybrid vehicle control ECU alerts the driver and performs fail-safe control based on error signals sent from the battery smart unit.





MONITOR DESCRIPTION

When the hybrid vehicle control ECU detects a low power supply voltage for the battery smart unit while precharge is occurring, it determines that there is a malfunction in the battery smart unit circuit. When the hybrid vehicle control ECU detects a malfunction, it will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.

2. Turn the ignition switch to ON and turn the Techstream on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the ignition switch off.

5. Turn the ignition switch to ON (READY).

6. Wait for 10 seconds or more.

7. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

8. Check that permanent DTCs are cleared.

9. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

WIRING DIAGRAM





INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
HINT
- Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
- After completing repairs, restart the system (turn the ignition switch to ON (READY)) and recheck for DTCs Hybrid Control System.

PROCEDURE

1. CHECK FUSE (IGCT NO. 3) P0AFC-123

NG -- REPLACE FUSE (IGCT NO. 3)
OK -- Continue to next step.

2. CHECK RELAY (IGCT MAIN) P0AFC-123

NG -- REPLACE RELAY (IGCT MAIN)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (IGCT VOLTAGE) P0AFC-123

NG -- CHECK HARNESS AND CONNECTOR (BATTERY SMART UNIT - IGCT MAIN RELAY AND BODY GROUND)

OK -- REPLACE BATTERY SMART UNIT Removal

4. CHECK HARNESS AND CONNECTOR (BATTERY SMART UNIT - IGCT MAIN RELAY AND BODY GROUND) P0AFC-123

NG -- CHECK HARNESS AND CONNECTOR (NO. 2 BATTERY PACK WIRE)

OK -- CHECK AND REPAIR POWER SOURCE CIRCUIT

5. CHECK HARNESS AND CONNECTOR (NO. 2 BATTERY PACK WIRE) P0AFC-123

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 2 BATTERY PACK WIRE)

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR