Pinpoint Test B: TCS Does Not Operate Correctly (Vehicles Equipped With A 2.5L Engine Only)
WARNING: This page is about a different variant/trim than selected.
- B1 CHECK THE IC
- Connect the scan tool.
- Using the scan tool, monitor the TCS PID while cycling the Transmission Control Switch (TCS).
- Does the TCS PID cycle from depressed to not depressed?
- Yes: REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES for diagnosis of the Instrument Cluster (IC) illumination.
- No: GO to B2.
- B2 CHECK FUSE 47 (10A)
- Check fuse: Battery Junction Box (BJB) fuse 47 (10A).
- Is the resistance less than 5 ohms?
- Yes: GO to B3.
- No: GO to B6.
- B3 CHECK THE POWER CIRCUIT FOR VOLTAGE
- Disconnect: Selector Lever C3233.
- Ignition ON.
- Measure the voltage between selector lever harness C3233-7, circuit CBK03 (GY), vehicle harness side and ground.
- Is the voltage greater than 10 volts?
- Yes: GO to B5.
- No: GO to B4.
- B4 CHECK THE POWER CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: BJB fuse 47 (10A).
- Measure the resistance between the output side of BJB fuse 47 (10A) and selector lever harness C3233-7 circuit CBK03 (GY), vehicle harness side.
- Is the resistance less than 5 ohms?
- Yes: Install a new BJB.
- No: REPAIR circuit CBK03 (GY) for an open. TEST the system for normal operation.
- B5 CHECK THE TCS
- Measure the resistance between selector lever harness C3533 pins 6 and 7, component side, while cycling the TCS.
- Is the resistance less than 5 ohms when pressed and greater than 10, 000 ohms when released?
- Yes: GO to B7.
- No: INSPECT the selector lever wiring harness for damage. REPAIR the wiring harness as required. If the selector lever wiring harness is not damaged, INSTALL a new selector lever knob. REFER to SELECTOR LEVER KNOB . TEST the system for normal operation.
- B6 CHECK THE SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: PCM C175T.
- Measure the resistance between selector lever harness C3233-6, circuit CET34 (BN/GN) and ground.
- Is the resistance greater than 10, 000?
- Yes: REPAIR circuit CBK03 (GY) for a short to ground. INSTALL a new fuse. TEST the system for normal operation.
- No: REPAIR circuit CET34 (BN/GN) for a short to ground. INSTALL a new fuse. TEST the system for normal operation.
- B7 CHECK THE SIGNAL CIRCUIT FOR AN OPEN
- Disconnect: PCM C175T.
- Measure the resistance between selector lever harness C3233-6, circuit CET34 (BN/GN) and PCM C175T-31, circuit CET34 (BN/GN).
- Is the resistance less then 5 ohms?
- Yes: INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS - 2.5L .
- No: REPAIR circuit CET34 (BN/GN) for an open. TEST the system for normal operation.