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DTC C2778

BHE040243000W33

DTC | C2778 | Steering angle sensor (abnormal battery voltage)
DETECTION CONDITION | • The steering angle sensor detects an abnormality (open circuit) in the battery power supply (constant power supply).
POSSIBLE CAUSE | • BTN 30 A fuse malfunction • DSC 7.5A fuse malfunction • Open circuit in the wiring harness between the battery and steering angle sensor terminal B • Poor connection at connectors (female terminal)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT BTN AND DSC FUSE CONDITION • Is the BTN 30 A fuse and DSC 7.5 A fuse normal? | Yes | Go to the next step.
No | Replace the fuse, then go to Step 3.
2 | INSPECT STEERING ANGLE SENSOR POWER SUPPLY FOR OPEN CIRCUIT • Turn the ignition switch off. • Disconnect the steering angle sensor connector. • Turn the ignition switch to the ON position (engine off). • Measure the voltage between steering angle sensor terminal B (harness-side) and ground. • Is the voltage B+? | Yes | Go to the next step.
No | Repair or replace the wiring harness for open circuit between battery positive terminal and steering angle sensor terminal B, then go to the next step.
3 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the memory. (See Clearing DTCs Procedures.) • Perform the steering angle sensor initialization procedure. (See STEERING ANGLE SENSOR INITIALIZATION PROCEDURE.) • Is the same DTC present? | Yes | Replace the steering angle sensor, then go to the next step. (See STEERING ANGLE SENSOR REMOVAL/INSTALLATION.)
No | Go to the next step.
4 | VERIFY AFTER REPAIR PROCEDURE • Are any other DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC Table.)
No | DTC troubleshooting completed.