TCM FB30-8 - Page 226

- 64 -
3. TROUBLESHOOTING GUIDE
(4)
509
22
509
25
: Torque sensor defective (shorted)
Resets when the key switch is turned OFF.
509
23
509
26
: Torque sensor defective (open)
Resets when the key switch is turned OFF.
① Check the torque sensor connector for looseness.
Connect securely.
② Check the harness between the EPS motor controller
(CN1E-6, -22, -23) and the torque sensor.
Correct the wiring.
③ Check the torque sensor.
Repair the torque sensor.
④ Replace the EPS motor controller.
(5)
-
09
: DM open
Resets when the key switch is turned OFF.
① Check the EPS motor connector for looseness.
Connect properly.
② Check the EPS motor wiring.
Correct the wiring.
③ Check the EPS motor.
Repair the EPS motor.
④ Replace the EPS motor controller.
(6)
-
11
: FET temp. too high
Automatically resets when the input returns to
normal.
-
12
: FET temp. abnormal
Automatically resets when the input returns to
normal.
① Put the steering wheel in neutral.
–
② Turn the key switch OFF and allow the FET to cool
down.
–
③ Check the EPS motor controller for loose screws.
Retighten.
④ Replace the EPS motor controller.
(7)
-
13
: FET1 thermosensor defective
Resets when the key switch is turned OFF.
-
14
: FET2 thermosensor defective
Resets when the key switch is turned OFF.
① Replace the EPS motor controller.