EPS DTC Troubleshooting: 34-02
DTC 34-02:
 Fail-safe Relay Stuck ON (Initial diagnosis)
  1. Turn the ignition switch OFF.
  1. Turn the ignition switch ON (II).
Does the EPS indicator come on?
YES -
Go to Step 4 .
NO -
Check for loose terminals or poor connections. If the connections are good, the system is OK at this time.■
  1. Verify the DTC.
Is DTC 34-02 indicated?
YES -
Go to Step 5 .
NO -
Troubleshoot the indicated DTC. If there are no DTCs, the system is OK at this time.■
  1. Turn the ignition switch OFF.
  1. Disconnect the EPS control unit connector A (2P), connector B (2P), connector C (2P), and connector D (28P).
  1. Turn the ignition switch ON (II).
  1. Measure the voltage between body ground and the EPS control unit connector B (2P) No. 1 terminal, connector C (2P) No. 1 terminal, and connector C (2P) No. 2 terminal individually.
Is there battery voltage?
YES -
Repair short to power in the wire harness between the EPS control unit and motor.■
NO -
Check for loose terminals in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit. ■