P0705 critical

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

The P0705 code means the vehicle's onboard diagnostic system has detected: Transmission Range Sensor Circuit Malfunction (PRNDL Input). This is a critical severity code.

My Garage →
Keep driving?
Short distances only
DIY difficulty
moderate
Estimated cost
$100 - $400 (parts and labor)
Check Your Fluid First
ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Read Transmission Codes
LAUNCH CRP123X (Reads All Systems)

Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.

Check Price on Amazon

Affiliate link -- we earn a commission at no extra cost to you.

Common Symptoms

  • Check Engine Light illuminated
  • Incorrect gear displayed on dashboard
  • Transmission shifts erratically
  • Vehicle may not start
  • Reverse lights may not work

Probable Causes (Ranked by Likelihood)

  • Faulty transmission range sensor (neutral safety switch) Very High
  • Misadjusted range sensor or shift linkage High
  • Damaged range sensor wiring or connector Moderate
  • TCM range sensor input circuit fault Low

Step-by-Step Diagnostic Procedure

  1. Shift through all positions and monitor the range sensor PID on a scan tool

  2. Inspect the range sensor connector on the transmission for corrosion

  3. Check range sensor adjustment -- it may have slipped out of position

  4. Measure range sensor resistance or voltage in each position

  5. Inspect the shift cable or linkage for looseness or wear

Frequently Asked Questions

Can I drive with code P0705?

Drive short distances only with extreme caution. The TCM may not know what gear is selected, leading to unpredictable shifting.

What is the transmission range sensor?

The transmission range sensor (also called neutral safety switch) tells the TCM which gear position the shift lever is in. It is critical for proper gear selection and starting.

Can a loose shift cable cause P0705?

Yes. A stretched or loose shift cable can cause the range sensor to be misaligned with the actual shift lever position.

Sources

This page is built from documented references. Verify against your own service info before repair work.

Explore More

Search codes Vehicle-specific fixes Guides By make

Was this helpful?

Share carcodefinder.com with a friend who needs to decode their check engine light.

Browse by symptom → Read repair guides → Fixes by vehicle →