Pinpoint Test B: TCS Does Not Operate Correctly

External Controls

Pinpoint Tests

Refer to Wiring Diagram Set 29, Transmission Controls for schematic and connector information. Diagrams By Number

Refer to Wiring Diagram Set 37, Shift Interlock for schematic and connector information. Diagrams By Number

PINPOINT TEST B: TCS DOES NOT OPERATE CORRECTLY

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B1 TEST THE IC

- Connect the scan tool.
- Using the scan tool, monitor the TCS_DEPRES PID while cycling the Transmission Control Switch (TCS).
- Does the TCS_DEPRES PID cycle from DEPRESSED to NOT DEPRESSED?

Yes
REFER to Instrumentation, Message Center, and Warning Chimes Testing and Inspection.

No
GO to B2.

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B2 CHECK CJB FUSE 22 (7.5A)

- Ignition OFF.
- Check fuse: Central Junction Box (CJB) 22 (7.5A).
- Is the resistance less than 5 ohms?

Yes
GO to B3.

No
GO to B4.

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B3 CHECK FOR VOLTAGE AT THE SELECTOR LEVER CONNECTOR

- Disconnect: Selector Lever Harness C3245.
- Ignition ON.
- Measure the voltage between selector lever harness C3245-6, circuit CBP22 (GN/OG), vehicle harness side and ground.




- Is the resistance less than 5 ohms?

Yes
GO to B4.

No
REPAIR circuit CBP22 (GN/OG). RECONNECT all components. TEST the system for normal operation.

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B4 TEST THE TCS

- Measure the resistance between selector lever harness C3245 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 B5.

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 Selector Lever Knob. TEST the system for normal operation.

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B5 TEST THE TCS SIGNAL CIRCUIT FOR A SHORT TO GROUND

- Ignition OFF.
- Disconnect: Transmission Control Module (TCM) C1ET02.
- Measure the resistance between selector lever harness C3245-7, circuit CE417 (GY/BN) and ground.




- Is the resistance greater than 10,000 ohms?

Yes
GO to B6.

No
REPAIR circuit CE417 (GY/BN) for a short to ground. TEST the system for normal operation.

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B6 TEST THE TCS SIGNAL CIRCUIT FOR AN OPEN CIRCUIT

- Measure the resistance between selector lever harness C3245-7, circuit CE417 (GY/BN) and TCM C1ET02-11.




- Is the resistance greater than 10,000 ohms?

Yes
INSTALL a new TCM. REFER to Automatic Shifting Manual Transmission/Transaxle Transmission Control Module (TCM).

No
REPAIR circuit CE417 (GY/BN) for an open. RECONNECT all components. TEST the system for normal operation.

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