EPS DTC Troubleshooting: 32-01, 32-02, 34-01, 34-05, 35-01, 35-02, 35-04, 35-05, 35-07, 36-02, 37-01, 37-02
DTC 32-01: EPS Control Unit Internal Circuit (Current Sensor)
DTC 32-02: EPS Control Unit Internal Circuit (Current Sensor Offset)
DTC 34-01: Power Relay
DTC 34-05: Power Relay Stuck OFF
DTC 35-01: EPS Control Unit Internal Circuit (CPU)
DTC 35-02: EPS Control Unit Internal Circuit (EEPROM1)
DTC 35-04: EPS Control Unit Internal Circuit (CPU Communication)
DTC 35-05: EPS Control Unit Internal Circuit (A/D Conversion)
DTC 35-07: EPS Control Unit Internal Circuit (INHL/INHR Ports)
DTC 36-02: EPS Control Unit Internal Circuit (INH Output Circuit)
DTC 37-01: EPS Control Unit Internal Circuit (Step-Up Circuit)
DTC 37-02: EPS Control Unit Internal Circuit (Step-Up Circuit)
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the how to troubleshoot the EPS.

DTC Description
DTC
Freeze Frame
32-01 EPS Control Unit Internal Circuit (Current Sensor)
    
32-02 EPS Control Unit Internal Circuit (Current Sensor Offset)
    
34-01 Power Relay
    
34-05 Power Relay Stuck OFF
    
35-01 EPS Control Unit Internal Circuit (CPU)
    
35-02 EPS Control Unit Internal Circuit (EEPROM1)
    
35-04 EPS Control Unit Internal Circuit (CPU Communication)
    
35-05 EPS Control Unit Internal Circuit (A/D Conversion)
    
35-07 EPS Control Unit Internal Circuit (INHL/INHR Ports)
    
36-02 EPS Control Unit Internal Circuit (INH Output Circuit)
    
37-01 EPS Control Unit Internal Circuit (Step-up Circuit)
    
37-02 EPS Control Unit Internal Circuit (Step-Up Circuit)
    

1.
Problem verification:

Problem verification
?1.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then start the engine.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
32-01 EPS Control Unit Internal Circuit (Current Sensor)
    
32-02 EPS Control Unit Internal Circuit (Current Sensor Offset)
    
34-01 Power Relay
    
34-05 Power Relay Stuck OFF
    
35-01 EPS Control Unit Internal Circuit (CPU)
    
35-02 EPS Control Unit Internal Circuit (EEPROM1)
    
35-04 EPS Control Unit Internal Circuit (CPU Communication)
    
35-05 EPS Control Unit Internal Circuit (A/D Conversion)
    
35-07 EPS Control Unit Internal Circuit (INHL/INHR Ports)
    
36-02 EPS Control Unit Internal Circuit (INH Output Circuit)
    
37-01 EPS Control Unit Internal Circuit (Step-up Circuit)
    
37-02 EPS Control Unit Internal Circuit (Step-Up Circuit)
    

Is DTC 32-01, 32-02, 34-01, 34-05, 35-01, 35-02, 35-04, 35-05, 35-07, 36-02, 37-01, or 37-02 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time.?
2.
EPS control unit check (update):

EPS control unit check (update)
?1.
Update the EPS control unit if it does not have the latest software.

?2.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then start the engine.

?3.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
32-01 EPS Control Unit Internal Circuit (Current Sensor)
    
32-02 EPS Control Unit Internal Circuit (Current Sensor Offset)
    
34-01 Power Relay
    
34-05 Power Relay Stuck OFF
    
35-01 EPS Control Unit Internal Circuit (CPU)
    
35-02 EPS Control Unit Internal Circuit (EEPROM1)
    
35-04 EPS Control Unit Internal Circuit (CPU Communication)
    
35-05 EPS Control Unit Internal Circuit (A/D Conversion)
    
35-07 EPS Control Unit Internal Circuit (INHL/INHR Ports)
    
36-02 EPS Control Unit Internal Circuit (INH Output Circuit)
    
37-01 EPS Control Unit Internal Circuit (Step-up Circuit)
    
37-02 EPS Control Unit Internal Circuit (Step-Up Circuit)
    

Is DTC 32-01, 32-02, 34-01, 34-05, 35-01, 35-02, 35-04, 35-05, 35-07, 36-02, 37-01, or 37-02 indicated?

     
YES
     
     
     
     
NO
     
     
     
Troubleshooting is complete.?