OBD Guide

P078E

Shift Timing Solenoid B Intermittent

P078E is an OBD-II diagnostic trouble code meaning: Shift Timing Solenoid B Intermittent. Common causes: solenoid circuit problems, solenoid b fault. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Rough gear shifting
  • Jerks when switching
  • Delays when shifting gears
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Solenoid circuit problems
  • Solenoid B fault
  • Poor contact in connectors
  • Wiring harness damage
  • Problems with the transmission control unit

How to Fix

  1. Check the electrical circuit of the solenoid
  2. Check connectors and contacts
  3. Test Solenoid B
  4. Replace solenoid if necessary
  5. Check the operation of the transmission control unit

Related codes

Error P078E by Vehicle Brand

FAQ

What does the P078E code mean?

P078E is an OBD-II diagnostic trouble code that indicates: Shift Timing Solenoid B Intermittent

What causes a P078E error code?

The most common causes of P078E include: Solenoid circuit problems; Solenoid B fault; Poor contact in connectors; Wiring harness damage.

How do I fix a P078E diagnostic trouble code?

To fix P078E: Check the electrical circuit of the solenoid. Check connectors and contacts. Test Solenoid B. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P078E?

Yes, but get it checked soon

How much does it cost to fix P078E?

The estimated repair cost for P078E is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat