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P0789

Overview

Code

P0789

Code Type

P

Code Class

P0

System

Transmission

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0789 indicates a malfunction in the transmission fluid pressure control solenoid B circuit

Symptoms

Rough shifting Transmission slipping

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Transmission fluid pressure control solenoid B

Possible Causes

Faulty fluid pressure control solenoid B Wiring or electrical issues

Diagnostic Steps

1 Inspect solenoid B2 Test solenoid B circuit

Drive Safety Notes

A malfunction in solenoid B can lead to delayed shifting and erratic transmission behavior

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