Test TC-115A - Power Steering Switch Failure
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION Directory. For wiring diagram, see WIRING DIAGRAMS
article.
- Disconnect power steering pressure switch connector. Connect a jumper wire to power steering pressure switch input circuit. See POWER STEERING PRESSURE SWITCH CONNECTOR WIRE ID table. Using scan tool, monitor power steering pressure switch. While observing scan tool, touch jumper wire to ground 5 times. If power steering pressure switch changed from on to off, go to next step. If power steering pressure switch did not change from on to off, go to step 3).
- Replace power steering pressure switch. Perform procedures under TEST VER-2A.
- Disconnect Powertrain Control Module (PCM) connector. Using an external ohmmeter, check resistance of power steering pressure switch sense circuit between power steering pressure switch connector and PCM connector terminal No. 45. See POWER STEERING PRESSURE SWITCH CONNECTOR WIRE ID table. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open power steering pressure switch sense circuit. Perform TEST VER-2A.
- Using scan tool in ohmmeter mode, check resistance of power steering pressure switch sense circuit at power steering pressure switch connector. See POWER STEERING PRESSURE SWITCH CONNECTOR WIRE ID table. If resistance is less than 5 ohms, repair short to ground on power steering pressure switch sense circuit. Perform TEST VER-2A. If resistance is 5 ohms or more, replace PCM. Perform TEST VER-2A.
POWER STEERING PRESSURE SWITCH CONNECTOR WIRE ID
| Application | Wire Color |
|---|---|
| Power Steering Pressure Switch Sense Circuit | Dark Blue/Yellow |