DTC 16: Steering Angle Sensor
NOTE:
Steering angle sensor is part of combination switch. If steering angle sensor is defective, replace combination switch.
- Turn ignition on. While turning steering wheel side-to-side, measure voltage between ground and terminal 1H at ABS/TCS control module connector. See Figure . ABS/TCS control module is located behind left side of instrument panel. Also, measure voltage between ground and terminal 1L at ABS/TCS control module. If voltage is 4.5 volts or more at either terminal, go to next step. If voltage is not 4.5 volts or more at either terminal, go to step 4).
- Turn ignition off. Check for continuity between terminal 1H at ABS/TCS control module connector and terminal "B" at combination switch connector. See Figure and Fig 1 . Also check for continuity between terminal 1L at ABS/TCS control module connector and terminal "C" at combination switch connector. If continuity exists, go to next step. If continuity does not exist, repair open circuit in wiring harness as necessary.
- Check steering angle sensor. See STEERING ANGLE SENSOR (1995) under COMPONENT TESTING. Replace combination switch as necessary. See STEERING COLUMN article. If steering angle sensor is okay, replace ABS/TCS control module.
- Turn ignition on. While turning steering wheel side-to-side, measure voltage between ground and terminal 1H at ABS/TCS control module connector. Also, measure voltage between ground and terminal 1L at ABS/TCS control module. If voltage is one volt or less at either terminal, go to step 6). If voltage is not one volt or less at either terminal, go to next step.
- Turn ignition off. Check for continuity between terminal 1H at ABS/TCS control module connector and terminal "B" at combination switch connector. See Figure and Fig 1 . Also check for continuity between terminal 1L at ABS/TCS control module connector and terminal "C" at combination switch connector. If continuity exists, replace combination switch. See STEERING COLUMN article. If continuity does not exist, repair open circuit in wiring harness as necessary.
- Turn ignition on. While turning steering wheel side-to-side, measure voltage between ground and terminal 1H at ABS/TCS control module connector. Also, measure voltage between ground and terminal 1L at ABS/TCS control module. If voltage is 1-3.4 volts at either terminal, go to step 2). If voltage is not 1-3.4 volts at either terminal, go to next step.
- Connect an oscilloscope between ground and terminal 1H at ABS/TCS control module connector. Start and allow engine to idle. Turn steering wheel side-to-side and observe oscilloscope. Also, check voltage pattern with oscilloscope connected between ground and terminal 1L at ABS/TCS control module connector. Voltage should switch from zero to 3.5-4.5 volts. See Fig 2 . If voltage at both terminals is as specified, replace ABS/TCS control module. If voltage is not as specified at one or both terminals, replace combination switch. See STEERING COLUMN article.