| DTC Code | DTC Name |
|---|---|
| P0AFC-123 | Hybrid Battery Pack Sensor Module |
DESCRIPTION
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If the battery smart unit detects an internal malfunction, it sends an error signal to the hybrid vehicle control ECU assembly. When the hybrid vehicle control ECU assembly receives the error signal from the battery smart unit, the ECU warns the driver and performs fail-safe control.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0AFC | 123 | The hybrid vehicle control ECU assembly receives an error signal from the battery smart unit. |
|
CAUTION / NOTICE / HINT
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Before inspecting the high-voltage system, 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.
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After removing 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 (Click here).
Tip:Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work (Click here).
After repairing, restart the system (turn the power switch on (READY)) and recheck for DTCs (Click here).
PROCEDURE
- Click here
CHECK HARNESS AND CONNECTOR (IGCT VOLTAGE)
CAUTION:Be sure to wear insulated gloves.
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Check that the service plug grip is not installed.
Note:After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
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Remove the luggage compartment front trim cover (Click here).
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Connect the cable to the negative (-) auxiliary battery terminal.
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Turn the power switch on (IG).
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Measure the voltage according to the value(s) in the table below.
Standard Voltage Tester Connection Condition Specified Condition P10-3 (IGCT) - P10-6 (GND) Power switch on (IG) 11 to 14 V Table 1. Text in Illustration *a Component with harness connected
(Battery Smart Unit)
Note:Turning the power switch on (IG) with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.
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Turn the power switch off.
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Disconnect the cable from the negative (-) auxiliary battery terminal.
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Install the luggage compartment front trim cover.
- OK
REPLACE BATTERY SMART UNIT (Click here)
- NGClick here
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- Click here
CHECK HARNESS AND CONNECTOR (GND - BODY GROUND)
CAUTION:Be sure to wear insulated gloves.
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Check that the service plug grip is not installed.
Note:After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
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Remove the luggage compartment front trim cover (Click here).
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Measure the resistance according to the value(s) in the table below.
Standard Resistance Tester Connection Condition Specified Condition P10-6 (GND) - Body ground Power switch off Below 1 Ω Table 2. Text in Illustration *a Component with harness connected
(Battery Smart Unit)
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Install the luggage compartment front trim cover.
- OK
REPAIR OR REPLACE HARNESS OR CONNECTOR (BATT VL SSR FUSE - BATTERY SMART UNIT)
- NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND - BODY GROUND)
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