DTC 52-06: Torque Sensor Offset Out of Range

Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Turn the ignition switch to LOCK (0).
Start the engine.
Turn the steering wheel from lock to lock several times.
Check for DTCs with the HDS.
Is DTC 52-06 indicated?

YES -Go to step 7.

NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EPS control unit.
Turn the ignition switch to LOCK (0).
Disconnect EPS control unit connector B (16P) (see step 3 ).
Turn the ignition switch to ON (II).
Measure the voltage between body ground and EPS control unit connector B (16P) terminals No. 13 and No. 15 individually.

Fig 1: Measuring Voltage Between Body Ground And EPS Control Unit Connector B (16P) Terminals No. 13 And No. 15
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Repair a short to power in the wire between the EPS control unit and the torque sensor.

NO -Go to step 11.
Turn the ignition switch to LOCK (0).
Check for continuity between body ground and EPS control unit connector B (16P) terminals No. 13 and No. 15 individually.

Fig 2: Checking Continuity Between Body Ground And EPS Control Unit Connector B (16P) Terminals No. 13 And No. 15
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 13.

NO -Go to step 15.
Disconnect the torque sensor 6P connector (see step 19 ).
Check for continuity between body ground and EPS control unit connector B (16P) terminals No. 13 and No. 15 individually.

Fig 3: Checking Continuity Between Body Ground And EPS Control Unit Connector B (16P) Terminals No. 13 And No. 15
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to body ground in the wire between the EPS control unit and the torque sensor.

NO -Replace the steering gearbox (see STEERING GEARBOX REMOVAL AND INSTALLATION ).
Disconnect the torque sensor 6P connector (see step 19 ).

Check for continuity between EPS control unit connector B (16P) terminals and torque sensor 6P connector terminals (see table).

CONNECTOR TERMINAL DESCRIPTION

Sign	EPS Control Unit Connector B (16P) Terminal	Torque Sensor 6P Connector Terminal
MAIN	No. 15	No. 6
SUB	No. 13	No. 3

Fig 4: Checking Continuity Between EPS Control Unit Connector B (16P) Terminals And Torque Sensor 6P Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 17.

NO -Repair an open in the wire between the EPS control unit and the torque sensor.

Substitute a known-good EPS control unit (see EPS CONTROL UNIT REMOVAL/INSTALLATION ).
Reconnect all the connectors.
Start the engine.
Turn the steering wheel from lock to lock several times.
Check for DTCs with the HDS.
Is DTC 52-06 indicated?

YES -Replace the steering gearbox (see STEERING GEARBOX REMOVAL AND INSTALLATION ).

NO -Replace the original EPS control unit (see EPS CONTROL UNIT REMOVAL/INSTALLATION ).