OBD Guide
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P1596

Speed Control Switch Always High

P1596 is an OBD-II diagnostic trouble code meaning: Speed Control Switch Always High. Common causes: faulty cruise control switch, short to ground in the switch circuit. Estimated repair cost: $17–56.

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

Symptoms

  • Cruise control won't turn on
  • Cruise control turns off spontaneously
  • Cruise control speed cannot be adjusted
  • The malfunction indicator light comes on
  • The error persists after restarting the engine

Causes

  • Faulty cruise control switch
  • Short to ground in the switch circuit
  • Broken or damaged wiring
  • Problems with contacts in connectors
  • Engine control unit malfunction

How to Fix

  1. Check the operation of the cruise control switch
  2. Diagnose the condition of the control circuit
  3. Inspect the wiring harness for damage
  4. Check contacts in connectors
  5. If necessary, replace the cruise control switch

Related codes

P1595P1597P1599

Error P1596 by Vehicle Brand

DodgeJeepPlymouthPontiacSubaru

FAQ

What does the P1596 code mean?

P1596 is an OBD-II diagnostic trouble code that indicates: Speed Control Switch Always High

What causes a P1596 error code?

The most common causes of P1596 include: Faulty cruise control switch; Short to ground in the switch circuit; Broken or damaged wiring; Problems with contacts in connectors.

How do I fix a P1596 diagnostic trouble code?

To fix P1596: Check the operation of the cruise control switch. Diagnose the condition of the control circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1596?

Yes, but get it checked soon

How much does it cost to fix P1596?

The estimated repair cost for P1596 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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