Diagnosis Procedure

1. Ignition switch OFF.
2. Disconnect steering angle main control module connector.
3. Check the continuity between steering angle main control module harness connector and ground.

   Steering angle main control module		--	Continuity
   Connector	Terminal
   E150	34	Ground	Yes
   E146	39

Is the inspection result normal?

YES

GO TO 2.

NO

Repair open circuit or short to ground or short to power in harness or connectors.

1. Ignition switch ON.
2. Check the voltage between steering angle main control module harness connector and ground.

   +		-	Voltage (Approx.)
   Steering angle main control module
   Connector	Terminal
   E150	33	Ground	Battery Voltage

Is the inspection result normal?

YES

GO TO 4.

NO

GO TO 3.

1. Ignition switch OFF.
2. Check the 100A fusible link (#G).
3. Check the harness for open or short between steering angle main control module harness connector E150 terminal 33 and the 100A fusible link (#G).

Is the inspection result normal?

YES

Perform the trouble diagnosis for battery power supply circuit. Refer to Wiring Diagram.

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NO

Repair or replace malfunctioning component.

1. Ignition switch OFF.
2. Check enlarged contact spring of terminal. Refer to How to Check Terminal .
3. Perform intermittent incident while turning steering wheel. Refer to Intermittent Incident .

Is the inspection result normal?

YES

Replace steering angle main control module. Refer to Removal and Installation .

NO

Repair or replace malfunctioning component.