*NO RESPONSE FROM THE SAS (STEERING ANGLE SENSOR)

For a complete wiring diagram Refer to Section 8W.

Possible Causes

(F943) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED

(Z385) GROUND CIRCUIT OPEN

(D65) CAN C BUS (+) CIRCUIT OPEN

(D64) CAN C BUS (-) CIRCUIT OPEN

STEERING ANGLE SENSOR

Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

Turn the ignition on.

NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

With the scan tool, select ECU view.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

Does the scan tool display a red X next to the sensor?

Yes

Go To 2

The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.

2. (F943) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED

Turn the ignition off.
Disconnect the Steering Angle Sensor harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the (F943) Fused Ignition Switch Output circuit.

Does the test light illuminate brightly?

Yes

Go To 3

Repair the (F943) Fused Ignition Switch Output circuit for an open or short.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

3. (Z385) GROUND CIRCUIT OPEN

Turn the ignition off.
Using a 12-volt test light connected to 12-volts, check the (Z385) ground circuit.

Does the test light illuminate brightly?

Yes

Go To 4

Repair the (Z385) ground circuit for an open.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

4. (D65) CAN C BUS (+) CIRCUIT OPEN

Disconnect the scan tool from the DLC connector.
Measure the resistance of the (D65) CAN C Bus (+) circuit between the DLC connector and the Steering Angle Sensor connector.

Is resistance below 5.0 ohms?

Yes

Go To 5

Repair the (D65) CAN C Bus (+) circuit for an open.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

5. (D64) CAN C BUS (-) CIRCUIT OPEN

Measure the resistance of the (D64) CAN C Bus (-) circuit between the DLC connector and the Steering Angle Sensor connector.

Is resistance below 5.0 ohms?

Yes

Replace the Steering Angle Sensor in accordance with the service information.

Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

Repair the (D64) CAN C Bus (-) circuit for an open.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)