OBD Guide
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P1735

Speed Sensor Reference High

P1735 is an OBD-II diagnostic trouble code meaning: Speed Sensor Reference High. Common causes: speed sensor malfunction, damage to the sensor wiring harness. 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
  • Enabling emergency transmission mode
  • Incorrect speedometer readings
  • Check engine light comes on
  • Reduced vehicle dynamics

Causes

  • Speed sensor malfunction
  • Damage to the sensor wiring harness
  • Short circuit in the sensor circuit
  • Grounding problems
  • Mechanical damage to the drive shaft

How to Fix

  1. Check the condition of the speed sensor and its connection
  2. Check the integrity of the wiring harness
  3. Measure the resistance and voltage in the sensor circuit
  4. Periodically clean contacts and connectors
  5. If necessary, replace the speed sensor

Related codes

P1736P1737P1738

Error P1735 by Vehicle Brand

Mazda

FAQ

What does the P1735 code mean?

P1735 is an OBD-II diagnostic trouble code that indicates: Speed Sensor Reference High

What causes a P1735 error code?

The most common causes of P1735 include: Speed sensor malfunction; Damage to the sensor wiring harness; Short circuit in the sensor circuit; Grounding problems.

How do I fix a P1735 diagnostic trouble code?

To fix P1735: Check the condition of the speed sensor and its connection. Check the integrity of the wiring harness. Measure the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1735?

Limited driving only, diagnose soon

How much does it cost to fix P1735?

The estimated repair cost for P1735 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat