Inspection Procedure

WARNING: This page is about a different car, the 2007 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side).
OK or NG

OK: GO TO 2.

NG: Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect the connector of EPS control unit.

Check the resistance between the EPS control unit harness connector terminals.

CONNECTOR TERMINAL RESISTANCE SPECIFICATION

EPS control unit harness connector			Resistance (Ω)
Connector No.	Terminal No.		Resistance (Ω)
M37	5	7	Approx. 54 - 66

OK or NG

OK: GO TO 3.

NG: Repair the EPS control unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the EPS control unit. Refer to "WIRING DIAGRAM - EPS - ".

OK or NG

OK:
- Present error: Replace the EPS control unit. Refer to "REMOVAL AND INSTALLATION ".
- Past error: Error was detected in the EPS control unit branch line.
NG: Repair the power supply and the ground circuit.