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EPS CONTROL MODULE INSPECTION

BHE061367880W02

1. Remove the engine cover, battery cover, and PCM cover.

2. Remove the PCM and the EPS control module. (See EPS CONTROL MODULE REMOVAL/INSTALLATION.)

3. Connect the PCM and EPS control module connectors.

4. Attach the tester lead to the underside of the control module connector and inspect the voltage and continuity according to the Terminal Voltage Table (Reference) indicated in the table.

  Note

  • When inspecting the torque sensor and EPS motor for continuity, turn the ignition switch off and inspect with the connectors for the EPS control module, torque sensor, and EPS motor disconnected.

## Terminal Voltage Table (Reference)

Terminal | Signal name | Connected to | Measured item | Measured terminal (measured condition) | Standard | Inspection item(s)
--- | --- | --- | --- | --- | --- | ---
1A | Battery power supply | Battery | Voltage | Under any condition | B+ | • Wiring harness (1A-battery) • Fuse (60 A)
1B | Ground | Ground point | Voltage | Under any condition | 1 V or less | • Wiring harness (1B-ground point)
2A | Ground | Ground point | Voltage | Under any condition | 1 V or less | • Wiring harness (2A-ground point)
2B | - | - | - | - | - | -
2C | - | - | - | - | - | -
2D | - | - | - | - | - | -
2E | - | - | - | - | - | -
2F | - | - | - | - | - | -
2H | - | - | - | - | - | -
2J | - | - | - | - | - | -
2K | CAN-L | - | Inspect under DTC inspection. | -
2L | - | - | - | - | - | -
2M | CAN-H | - | Inspect under DTC inspection. | -
2N | - | - | - | - | - | -
2O | Ground | Ground point | Voltage | Under any condition | 1 V or less | • Wiring harness (2O-ground point)
2P | Ignition power supply | Ignition switch | Voltage | Ignition switch is ON | B+ | • Wiring harness (2P-ignition switch-battery) • Fuse (15 A)
Ignition switch is OFF | 1 or less
3A | Torque sensor (Signal 2) | Torque sensor | Continuity | Terminal 3A-torque sensor terminal A | Continuity detected | • Wiring harness (3A-torque sensor A)
3B | Torque sensor (Drive signal) | Torque sensor | Continuity | Terminal 3B-torque sensor terminal B | Continuity detected | • Wiring harness (3B-torque sensor B)
3C | Torque sensor (Signal 1) | Torque sensor | Continuity | Terminal 3C-torque sensor terminal C | Continuity detected | • Wiring harness (3C-torque sensor C)
4A | EPS motor | EPS motor | Continuity | Terminal 4A-EPS motor terminal A | Continuity detected | • Wiring harness (4A-EPS motor A)
4B | EPS motor | EPS motor | Continuity | Terminal 4B-EPS motor terminal B | Continuity detected | • Wiring harness (4B-EPS motor B)