DTC Troubleshooting: 37

DTC 37:  Motor Voltage


1.Check the EPS (70A) fuse in the under-hood fuse box, and reinstall the fuse if it is OK.

Is the fuse OK?


YES - Go to 2.


NO - Replace the fuse and recheck.n


2.Check for continuity between EPS control unit connector B (2P) terminal No. 2 and body ground.

Is there continuity?


YES - Go to 3.


NO - Repair open in the wire between the  EPS control unit and body ground (G506).n


3.Disconnect EPS control unit connector A (2P) and the motor 2P connector.

4.Check for continuity between EPS control unit connector A (2P) terminal No. 2 and motor 2P connector terminal No. 2.

Is there continuity?


YES - Go to 5.


NO - Repair open in the RED wire between  EPS control unit and motor.n


5.Check for continuity between EPS control unit connector A (2P) terminal No. 1 and motor 2P connector terminal No. 1.

Is there continuity?


YES - Go to 6.


NO - Repair open in the GRN wire between  EPS control unit and motor.n

6.Check for continuity between EPS control unit connector A (2P) terminal No. 2 and body ground.

Is there continuity?


YES - Repair short to body ground in the RED wire between  EPS control unit and motor.n


NO - Go to 7.


7.Check for continuity between EPS control unit connector A (2P) terminal No. 1 and body ground.

Is there continuity?


YES - Repair short to body ground in the GRN wire between  EPS control unit and motor.n


NO - Check for loose wires or poor connections at EPS control unit and motor 2P connectors. If necessary, substitute a known-good  EPS control unit and recheck.n