P0976 OBD-II Trouble Code: Shift Solenoid B Control Circuit Low

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Cost of diagnosing the P0976 code

P0976 is a diagnostic trouble code (DTC) for "Shift Solenoid B Control Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

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P0976 code definition

The P0976 trouble code indicates that the Powertrain Control Module (PCM) has detected a voltage from one of the shift solenoid control circuits that falls below the set parameters outlined by the vehicle's manufacturer.

What the P0976 code means

The shift solenoid control circuit helps to relay voltage and input between the shift system and the PCM. In the case of a P0976, there has been a reported lack or shortage of voltage input being fed into the PCM, This may result in a host of issues for the vehicle's transmission system.

What causes the P0976 code?

Issues with a broken electrical circuit between the solenoid control circuit and the PCM are the most likely cause for a P0976 trouble code. Technicians report that the code is often the result of a vehicle being stored under poor conditions for too long, or otherwise poorly handled in a previous set of repairs.

There is a very small chance that the PCM itself is faulty and reporting a false issue. Although this should only be considered once all other options have been extinguished, it is nonetheless something that may be considered if every other code-related component checks out properly.

What are the symptoms of the P0976 code?

In the case of a P0976 trouble code, the vehicle may suffer gear slippage or a failure to shift. One or more gears may be inaccessible due to the solenoid control circuit malfunction. The transmission system may otherwise act erratically, depending on how severe the solenoid control circuit malfunction is. A trouble code and illuminated dashboard engine lamp will be present as well in order to help diagnose the issue.

How does a mechanic diagnose the P0976 code?

A mechanic can first identify the P0976 code by reading it via an OBD-II code reader. The solenoid itself should be checked out for possible signs of disconnection or fault. Circuit checks should be taken between the shift solenoid control and the PCM itself using a voltmeter. This will help pinpoint any possible circuit issue, should any be present. Ensure that all of the connectors are linked properly, and make a note of any wiring that is broken, corroded or otherwise damaged.

Common mistakes when diagnosing the P0976 code

Components relating to the gearbox or shift solenoid control circuit may be mistakenly replaced when the real problem lies with broken electrical wiring.

How serious is the P0976 code?

If one or more gears has been made inaccessible due to the P0976 trouble code, this will severely affect the vehicle's drivability. As with any trouble code relating to the vehicle's transmission system, the P0976 should be taken very seriously, and addressed at the earliest discretion.

What repairs can fix the P0976 code?

Additional comments for consideration regarding the P0976 code

Particularly if it is a severe case of the code, the P0976 may be reported alongside other trouble codes associated with the vehicle's transmission system.

Need help with a P0976 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701- 6220.

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