DTC Troubleshooting: 11, 15, 16

DTC: 11	Torque Sensor Main
DTC: 16	Torque Sensor Main and Sub

1.	Clear the DTC.

2.	Start the engine.

3.	Wait at least 10 seconds. Does the EPS indicator come on? YES - Go to 4. NO - The system is OK at this time.n

4.	Stop the engine, and verify the DTC. Is DTC11, DTC15 or DTC16 indicated? YES - Go to 5. NO - Perform the appropriate troubleshooting for the code indicated.n

5.	Make sure the ignition switch is OFF.

6.	Disconnect the negative cable from the battery.

7.	Disconnect the EPS control unit connector B (14P) and the torque sensor 6P connector.

8.

Check for continuity between the appropriate EPS control unit connector B (14P) terminal and body ground (see table). Terminal name  EPS control unit connector B terminal No.  Sub  9  SE  8  Main  10  V-ref  2  Vcc  1    Is there continuity? YES - Repair short to body ground in the appropriate sensor circut between the torque sensor and  EPS control unit.n NO - Go to 9.

9.	Reconnect the negative cable to the battery.

10.	Turn the ignition switch ON (II).

11.

Measure the voltage between the appropriate EPS control unit connector B (14P) terminal and body ground (see table). Terminal name  EPS control unit connector B terminal No.  Sub  9  SE  8  Main  10  V-ref  2  Vcc  1    Is there battery voltage? YES - Repair short to power in the + circuit wire between the  EPS control unit and torque sensor.n NO - Go to 12.

12.	Connect the appropriate torque sensor 6P connector terminal and body ground with a jumper wire (see table).   Terminal name  Torque Sensor terminal No.  EPS control unit connector B terminal No.  Sub  1  9  SE  3  8  Main  4  10  V-ref  5  2  Vcc  6  1

13.	Check for continuity between the appropriate EPS control unit connector B (14P) terminal and body ground (see table).   Is there continuty? YES - Go to 14. NO - Repair open in the appropriate torque sensor wire circuit between the  EPS control unit and the torque sensor.n

14.	Turn the ignition switch OFF.

15.	Disconnect the negative cable from the battery.

16.	Substitute a know-good EPS control unit, and connect the all disconnected connectors.

17.	Reconnect the negative cable to the battery.

18.	Start the engine. Does the EPS indicator come on? YES - Go to 19. NO - Check for loose EPS control unit connectors. If necessary, substitute a known-good  EPS control unit and retest.n

19.	Stop the engine, and verify the DTC. Is DTC11, DTC15 or DTC16 indicated? YES - Check for loose torque sensor connectors. If necessary, substitute a known-good steering gearbox and recheck.n NO - Perform the appropriate troubleshooting for the code indicated.n