OBD Guide
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P189C

Transmission Range Command Message Performance

P189C is an OBD-II diagnostic trouble code meaning: Transmission Range Command Message Performance. Common causes: transmission ecu malfunction, problems with wiring or connections. Estimated repair cost: $17–89.

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

Symptoms

  • Incorrect operation of the gearbox
  • Check Engine light comes on
  • The car may go into emergency mode
  • Difficulty shifting gears

Causes

  • Transmission ECU malfunction
  • Problems with wiring or connections
  • Incorrect signals from sensors
  • Mechanical problems in the gearbox

How to Fix

  1. Check wiring and connections
  2. Diagnose the transmission ECU
  3. Check sensors and their signals
  4. If necessary, replace faulty components

Related codes

P189DP189EP189F

FAQ

What does the P189C code mean?

P189C is an OBD-II diagnostic trouble code that indicates: Transmission Range Command Message Performance

What causes a P189C error code?

The most common causes of P189C include: Transmission ECU malfunction; Problems with wiring or connections; Incorrect signals from sensors; Mechanical problems in the gearbox.

How do I fix a P189C diagnostic trouble code?

To fix P189C: Check wiring and connections. Diagnose the transmission ECU. Check sensors and their signals. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P189C?

Limited driving only, diagnose soon

How much does it cost to fix P189C?

The estimated repair cost for P189C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat