EPS System

Control System DTCs

EPS DTC Troubleshooting: 23-01, 32-0C, 34-01, 35-02, 35-04, 35-05, 35-08, 35-0A, 36-02, 37-01, 38-01

DTC 23-01 : CAN Data Stuck ON
DTC 32-0C : Battery Current Detect Circuit
DTC 34-01 : Power Relay
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 35-08 : EPS Control Unit Internal Circuit (EEPROM2)
DTC 35-0A : EPS Control Unit Internal Circuit (CPU Operation)
DTC 36-02 : EPS Control Unit Internal Circuit (INH Output Circuit)
DTC 37-01 : EPS Control Unit Internal Circuit (Step-Up Circuit)
DTC 38-01 : EPS Control Unit Internal Circuit (Temperature Sensor)

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the how to troubleshoot the EPS Initial Inspection and Diagnostic Overview.






1. Problem verification:

-1. Turn the ignition switch to ON (II).

-2. Clear the DTC with the HDS.

-3. Turn the ignition switch to LOCK (0), then start the engine.

-4. Check for DTCs with the HDS.






Is DTC 23-01, 32-0C, 34-01, 35-02, 35-04, 35-05, 35-08, 35-0A, 36-02, 37-01, or 38-01 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):

-1. Update the EPS control unit Programming and Relearning if it does not have the latest software.

-2. Turn the ignition switch to LOCK (0), then start the engine.

-3. Check for DTCs with the HDS.






Is DTC 23-01, 32-0C, 34-01, 35-02, 35-04, 35-05, 35-08, 35-0A, 36-02, 37-01, or 38-01 indicated?
-YES- Replace the EPS control unit Service and Repair.
-NO- Troubleshooting is complete.