User's Manual

39
Steering Angle Sensor Tests
1. Measure resistance between input voltage and ground
at the sensor wiring harness connector.
Verify continuity between the Electronic Control Unit
(ECU) and SAS‑60 and Yaw Rate Sensor (typically
YAS‑70 or YAS‑60).
Connector Pin Function
SAS
2 Voltage Input
1 Ground Input
ECU
12 Way
X4
11 Power
10 Common
2. Verify wiring between the Steering Angle Sensor and
the ECU.
SAS Wire
Harness
Terminal
ECU Wire
Harness
Terminal
Measurement
4 7 Verify Continuity
3 8 Verify Continuity
3. Verify wiring between the Steering Angle Sensor and
power/ground.
SAS Wire Harness
Terminal
Measurement
4 to Voltage &
Ground
Verify open circuit (no
continuity)
3 to Voltage &
Ground
Verify open circuit (no
continuity)
Troubleshooting Diagnostic Trouble Codes (DTCs):
Steering Angle Sensor (SAS) [Bendix
®
SAS-60
™
Sensor]
(continued)
Looking into wire harness connector
Steering Angle Sensor (SAS) Connector
(Note: When checking for voltage at YAW/LAS & SAS, the voltage will only be present momentarily at key ON).
4. To perform a calibration procedure of the Steering Angle
Sensor, Bendix
®
ACom
®
Diagnostic Software V6.7.2.5
or higher is required. Using the program, select the
“Configuration” option, followed by the “Calibrate”
option. The following screen should be displayed.
5. Follow the prompts to perform a calibration of the
Steering Angle Sensor.
6. To test the Steering Angle Sensor, ACom V6.7.2.5, or
higher, is required. Using Bendix ACom V6.7.2.5 or
higher, select the “Component Test” option, followed
by the “ESP Test” option. The following screen should
be displayed.
7. Follow the prompts to perform a test of the Steering
Angle Sensor.