P078B - Shift Timing Solenoid 'B' Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P078B Possible Causes

  • Faulty Shift Timing Solenoid 'B'
  • Shift Timing Solenoid 'B' harness is open or shorted
  • Shift Timing Solenoid 'B' circuit poor electrical connection

How do I fix code P078B?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P078B code

Labor: 1.0

The cost of diagnosing the P078B code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P078B Description

The Transmission Control Module (TCM) monitors the Shift Timing Solenoid 'B' circuit. The TCM sets the OBDII code when the Shift Timing Solenoid 'B' is out of factory specifications.
OBDII Code P078b - Shift Timing Solenoid 'B' Range/Performance - AutoCodes.com

More Information

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