Honda Accord BB7A six-speed: P2720 code set after collision - Transmission Digest

Honda Accord BB7A six-speed: P2720 code set after collision

The complaint

A 2015 Honda Accord with a 3.5-liter engine and the BB7A six-speed transmission (seen in figure 1, above), was involved in a minor collision to the left front of the vehicle. The vehicle was drivable and was taken to the transmission shop. Vehicle diagnostics revealed a P2720 “Pressure Control Solenoid D Voltage Low” was set and a no-reverse condi­tion was also present.

The cause

Further diagnostics revealed that PCS D is on in reverse as seen in the solenoid application chart in figure 2.

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Figure 2.

As a result of the collision, the battery tray was driven towards the transmission where the externally mounted solenoids are located. This resulted in the Solenoid D connector being broken, as you can see in figures 3 and 4, and causing the code to set and the no reverse condition.

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Figure 3.
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Figure 4.

The correction

The solenoid body and battery tray were replaced which allowed the P2720 to be cleared, after which reverse functioned normally.

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