OBD Guide

P0974

Shift Solenoid A Control Circuit High

P0974 is an OBD-II diagnostic trouble code meaning: Shift Solenoid A Control Circuit High. Common causes: short circuit in solenoid control circuit, shift solenoid a malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect gear shifting
  • Delays when shifting gears
  • Transmission of the gearbox into emergency mode
  • Increased fuel consumption
  • Check engine light comes on

Causes

  • Short circuit in solenoid control circuit
  • Shift Solenoid A Malfunction
  • Problems with the wiring harness or connectors
  • Transmission control module (TCM) malfunction
  • Poor circuit grounding

How to Fix

  1. Check the solenoid control circuit for a short circuit.
  2. Check resistance and operation of shift solenoid A
  3. Inspect the wiring harness and connectors for damage.
  4. Check circuit grounding
  5. Replace solenoid or TCM if necessary

Related codes

Error P0974 by Vehicle Brand

FAQ

What does the P0974 code mean?

P0974 is an OBD-II diagnostic trouble code that indicates: Shift Solenoid A Control Circuit High

What causes a P0974 error code?

The most common causes of P0974 include: Short circuit in solenoid control circuit; Shift Solenoid A Malfunction; Problems with the wiring harness or connectors; Transmission control module (TCM) malfunction.

How do I fix a P0974 diagnostic trouble code?

To fix P0974: Check the solenoid control circuit for a short circuit.. Check resistance and operation of shift solenoid A. Inspect the wiring harness and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0974?

Limited driving only, diagnose soon

How much does it cost to fix P0974?

The estimated repair cost for P0974 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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