How to check battery voltage in TCM module?
Connect the red lead of your voltmeter to each B+ (battery voltage) supply coming into the TCM module connector and the black lead of your voltmeter to a good ground (if not sure, battery negative always works). You should see a reading of battery voltage. Verify that you have good grounds as well.
What does lost communication with Transmission Control Module ( TCM ) mean?
Lost Communication with Transmission Control Module (TCM) What does that mean? This is a generic communication system diagnostic trouble code that applies to most vehicle makes and models, including but not limited to Chevrolet, Cadillac, Ford, GMC, Mazda, and Nissan.
How does the TCM calculate the gear ratio?
The TCM uses the output speed sensor and the input speed sensor to calculate the current gear ratio. If the gear ratio is not within tolerance (within 10%) for the correct gear detected, a DTC will be set.
What is the manual for the tesira TCM-1?
The Tesira software provides an intuitive interface for setup and programming of the TCM-1, TCM-1A and the TCM-1EX. The information supplied by this manual relates to physical connections and device setup. For more details on software setup, please consult the Tesira Help File.
Where is the 26 pin plug on a TCM?
Pin 26 Fused Ignition Switch Input (Start-Run) – This is a dark blue with white stripe wire. When you turn on the key to the run or start mode this sends power to the TCM. This will tie into the wire bundle coming out of the TJ PCM on connector 1 pin A2.
What kind of wire does a TJ PCM use?
Pin 24 Ground – This is a black with tan strip wire. This will tie into the wire bundle coming out of the TJ PCM on connector 1 pin A31 or A32. Provides a ground for the TCM. Pin 25 Fused B (+) – This is a pink 20 gauge wire.
How many connectors does a PCM 4.3L have?
The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4.3L, 5.0L or 5.7L Engine has a total of 4 connectors. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E). 1994 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS with A/T).
What are the colors of a 32 pin PCM connector?
C1 (Blue) PCM 32 Pin Connector Pin Wire Color Description 1 — Empty 2 — Empty 3 Brown w/ White stripe 1X CMP Signal 4 Pink Ignition Feed