11-01

EPS DTC Troubleshooting: 11-01, 11-02

DTC 11-01:

Low/High IG1-Terminal Voltage

DTC 11-02:

Battery Voltage

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.

4. Start the engine.

5. Wait at least 60 seconds.

6. Check for DTCs with the HDS.

Is DTC 11-01 or 11-02 indicated?

YES -

Go to step 7.

NO -

Check for loose terminals or poor connections. If the connections are good, the system is OK at this time.

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

8. Disconnect EPS control unit connector D (28P).

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

10. Measure the voltage between EPS control unit connector D (28P) terminal No. 16 and body ground.





Is there battery voltage?

YES -

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 Service and Repair.

NO -

If there is no voltage, or the voltage is lower than specified, repair an open or high resistance in the wire between the No. 6 (7.5 A) fuse in the driver's under-dash fuse/relay box and EPS control unit. If the wire checks OK, check the battery Battery Test, and troubleshoot the alternator regulator circuit Alternator And Regulator Circuit Troubleshooting.