OBD Guide
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P1837

Kick-Down Switch Failed Short

P1837 is an OBD-II diagnostic trouble code meaning: Kick-Down Switch Failed Short. Common causes: faulty kick down switch (internal short circuit), short to ground in the wiring to the switch. Estimated repair cost: $17–56.

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

Symptoms

  • Incorrect gear shifting (too late or too early)
  • Increased engine speed at idle or while driving
  • The car may not shift into higher gears
  • Decreased fuel efficiency
  • The Check Engine light may come on

Causes

  • Faulty kick down switch (internal short circuit)
  • Short to ground in the wiring to the switch
  • Mechanical sticking or damage to the switch button
  • Damage or chafing of the wiring harness in the pedal assembly area
  • Problems with connectors (oxidation, corrosion, damaged contacts)

How to Fix

  1. Carry out diagnostics with a scanner to check the status of the circuit breaker in real time
  2. Visually inspect the kick-down switch and adjacent wiring for mechanical damage.
  3. Check the switch circuit for short circuit using a multimeter
  4. If necessary, replace the faulty kick-down switch
  5. Clean or replace damaged connectors, restore wire insulation

Related codes

P1838P1839P0703

Error P1837 by Vehicle Brand

BuickCadillacChevroletGMGMCOldsmobileSaturn

FAQ

What does the P1837 code mean?

P1837 is an OBD-II diagnostic trouble code that indicates: Kick-Down Switch Failed Short

What causes a P1837 error code?

The most common causes of P1837 include: Faulty kick down switch (internal short circuit); Short to ground in the wiring to the switch; Mechanical sticking or damage to the switch button; Damage or chafing of the wiring harness in the pedal assembly area.

How do I fix a P1837 diagnostic trouble code?

To fix P1837: Carry out diagnostics with a scanner to check the status of the circuit breaker in real time. Visually inspect the kick-down switch and adjacent wiring for mechanical damage.. Check the switch circuit for short circuit using a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1837?

Limited driving only, diagnose soon

How much does it cost to fix P1837?

The estimated repair cost for P1837 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat