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DTC C1513 Torque sensor power supply too high
DTC C1514 Torque sensor power supply too low
 
 
cautionWhenever ECU is replaced, ensure that the CAN bus lines are normal.
 
 
OPERATION
Power is supplied to the torque sensor from the EPS-ECU.
 
 
 
FUNCTION
The torque sensor converts the input torque value into a voltage and outputs it to the EPS-ECU.
 
 
 
TROUBLE JUDGMENT
Check Conditions
  • Disconnect the C-21-1 EPS-ECU (torque sensor) connector.
  • Turn the ignition switch to the "ON" position (Engine running).
Judgment Criterion
  • The power supply voltage of torque sensor 1 and 2 is approximately 2.5 volts in the data list.
Fail Safe, Back Up Function
  • The EPS-ECU is in motor control output limit state, turns on the electric steering warning light, and sets DTC C1513 and C1514.
 
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the steering column shaft assembly (torque sensor).
  • Malfunction of the EPS-ECU
 
 
 
 
DIAGNOSIS
Required Special Tools:
  • MB991223: Harness Set
  • MB992006: Extra Fine Probe
STEP 1. Using scan tool (M.U.T.-IIISE), check the data list.
(1)
cautionTo prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE).
Connect scan tool (M.U.T.-IIISE). Refer to "How to Connect the Scan Tool (M.U.T.-IIISE) ."
(2) The steering is in the neutral position.
(3)
noteA half value of the actual voltage is displayed as the voltage value of the data list.
Check the following data list (Refer to ).
  • Item No. 03: Torque sensor power supply voltage1
  • Item No. 04: Torque sensor power supply voltage2
Is the check result normal?
Go to Step 2.
Replace the EPS-ECU (Refer to ).
 
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
(1) Erase the DTC.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position (Engine running).
(4) Check if the DTC is set.
Is the DTC set?
Replace the steering column shaft assembly (Refer to ).
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).