U150A implausible FCM variant message data length received

U150A code

U150A codeThe messages sent on the Can bus are distinguished by an indentifier (ID). Each can ID is defined to contain a certain number of bytes. The transmission control module (TCM) verifies that it has received the proper number of bytes for each ID. When monitored this DTC continuously with the ignition on, one valid Can ID received at least once, and no U0002 Can bus off performance DTC present. Set condition when the TCM detects an incorrect Can ID from the FCM.

Possible causes U150A code:

- TIPM Can Bus DTCs present

- Transmission control module

Diagnostic test U150A code

Step 1. Check for TIPM Can Bus DTCs.

With the scan tool, read TIPM DTCs.

Are there any TIPM can bus DTCs present ?

Yes, perform NAG1 Transmission Verification Test.

No, using the schematics as a guide, check the transmssion control module (TCM) terminals for corrosion, damage or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the TCM in accordance with the service information. Perform NAG1 Transmission Verification Test.

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