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DTC C2334 SAS neutral point not learned
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
OPERATION
The BSW-ECU (master) communicates with the steering wheel sensor via the gateway-ECU and the CAN bus lines.
 
 
CHECK CONDITION
Ignition switch is in the ON position.
 
 
DIAGNOSTIC FUNCTION AND TROUBLE JUDGMENT
When the BSW-ECU (master) receives the signal, which indicates that the neutral position of the steering wheel sensor has not been learnt yet, the ECU will set DTC C2334.
 
 
TROUBLESHOOTING HINTS
  • Neutral position of steering wheel sensor not learned
  • Malfunction of the steering wheel sensor (incorporated in column switch assembly)
  • Malfunction of BSW-ECU (master)
 
 
 
DIAGNOSIS
STEP 1. Steering wheel sensor calibration
Perform calibration of steering wheel sensor (Refer to GROUP 35C - Steering Wheel Sensor Calibration ).
Is the check result normal?
Go to Step 2.
Replace the column switch assembly (integrated with steering wheel sensor) (Refer to Column Switch Assembly Removal and Installation ).
 
STEP 2. Using scan tool (M.U.T.-III), read the BSW-ECU (master) DTC again.
Check again if the DTC is set in the BSW-ECU (master).
(1)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III) ."
(2) Erase the DTC.
(3) Turn the ignition switch from the LOCK (OFF) position to the ON position.
(4) Check if the DTC is set.
Is the DTC set?
Replace the BSW-ECU (master).
This diagnosis is complete.