OBD Guide

P0998

Shift Solenoid F Control Circuit Low

P0998 is an OBD-II diagnostic trouble code meaning: Shift Solenoid F Control Circuit Low. Common causes: shift solenoid f malfunction, open or short circuit in control circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Difficulty shifting gears
  • The car goes into emergency gearbox mode
  • Check Engine light comes on
  • Reduced vehicle dynamics
  • Possible jerking when changing gears

Causes

  • Shift Solenoid F Malfunction
  • Open or short circuit in control circuit
  • Poor contact in solenoid connectors
  • Transmission control module (TCM) malfunction
  • Wiring Harness Problems

How to Fix

  1. Check the condition of the wiring and connectors in the solenoid F circuit
  2. Test solenoid F resistance
  3. Check control circuit voltage
  4. If necessary, replace solenoid F
  5. Reflash or replace the transmission control unit if a malfunction is detected

Related codes

Error P0998 by Vehicle Brand

FAQ

What does the P0998 code mean?

P0998 is an OBD-II diagnostic trouble code that indicates: Shift Solenoid F Control Circuit Low

What causes a P0998 error code?

The most common causes of P0998 include: Shift Solenoid F Malfunction; Open or short circuit in control circuit; Poor contact in solenoid connectors; Transmission control module (TCM) malfunction.

How do I fix a P0998 diagnostic trouble code?

To fix P0998: Check the condition of the wiring and connectors in the solenoid F circuit. Test solenoid F resistance. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0998?

Limited driving only, diagnose soon

How much does it cost to fix P0998?

The estimated repair cost for P0998 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat