DTC    P0AFC-129    Hybrid Battery Pack Sensor Module

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DESCRIPTION

INSPECTION PROCEDURE

NOTICE:

Performing the check procedures for a long time with the shift lever in N may cause DTC P3000-388 to be set.

HINT:

If, after performing troubleshooting, it is necessary to replace the battery smart unit, voltages need to be confirmed after installing the new battery smart unit. Confirm that battery voltages (PWR RESOURCE VB), pre-boost voltage (VL), and post-boost voltage (VH) in the Data List are 220V or more with the power switch on (READY), park (P) selected, and the engine stopped. When the system is normal, the PWR RESOURCE VB, VL, and VH values should be almost equal (voltage boosting will not occur when the shift lever is in neutral). If the difference between each voltage exceeds the values specified below, there is a malfunction in the battery smart unit.

1. Connect the intelligent tester to the DLC3.
   

2. Turn the power switch on (IG).
   

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

4. Check if DTCs are output.
   

   Result:

   Result	Proceed to
   P0AFC-129 only is output.	A
   DTCs shown in Table 1 are output simultaneously.	B
   DTCs shown in Table 2 are output simultaneously.	C

   
   

   Table 1 

   DTC No.	Relevant Diagnosis
   P0A1A-151, 155, 156, 658, 659	Generator Control Module
   P0A1B-164, 193, 512, 661, 786	Drive Motor "A" Control Module
   P0A1D-148	Hybrid Powertrain Control Module
   P0A78-266, 267	Drive Motor "A" Inverter Performance
   P0A94-589, 590	DC/DC Converter Performance
   P2511-149	HV CPU Power Relay Sense Circuit Intermittent No Continuity
   P3004-132	Power Cable Malfunction
   P324E-788	MG-ECU Power Relay Intermittent Circuit
   U0110 (all INF codes)*1	Lost Communication with Drive Motor Control Module "A"

   
   

   Table 2 

   DTC No.	Relevant Diagnosis
   P0AFC-123	Hybrid Battery Pack Sensor Module
   P0B3D-123	Hybrid Battery Voltage Sensor "A" Circuit Low
   P0B42-123	Hybrid Battery Voltage Sensor "B" Circuit Low
   P0B47-123	Hybrid Battery Voltage Sensor "C" Circuit Low
   P0B4C-123	Hybrid Battery Voltage Sensor "D" Circuit Low
   P0B51-123	Hybrid Battery Voltage Sensor "E" Circuit Low
   P0B56-123	Hybrid Battery Voltage Sensor "F" Circuit Low
   P0B5B-123	Hybrid Battery Voltage Sensor "G" Circuit Low
   P0B60-123	Hybrid Battery Voltage Sensor "H" Circuit Low
   P0B65-123	Hybrid Battery Voltage Sensor "I" Circuit Low
   P0B6A-123	Hybrid Battery Voltage Sensor "J" Circuit Low
   P0B6F-123	Hybrid Battery Voltage Sensor "K" Circuit Low
   P0B74-123	Hybrid Battery Voltage Sensor "L" Circuit Low
   P0B79-123	Hybrid Battery Voltage Sensor "M" Circuit Low
   P0B7E-123	Hybrid Battery Voltage Sensor "N" Circuit Low
   P0B83-123	Hybrid Battery Voltage Sensor "O" Circuit Low
   P308A-123	Hybrid Battery Voltage Detection Circuit Open

   HINT:

   1. *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
      
   2. P0AFC-129 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output.
      

5. Turn the power switch off.
   

B	GO TO DTC CHART (Click here)

A
REPLACE BATTERY SMART UNIT (Click here)