P1702 — Transmission Range Sensor Circuit Intermittent

What Does P1702 Mean?

P1702 is a manufacturer-specific diagnostic trouble code: Transmission Range Sensor Circuit Intermittent. This code applies to MAZDA, SUBARU, OTHER, FORD, LINCOLN vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1702

⚠️ Check Engine Light (MIL) illuminated
⚠️ Transmission Range Sensor signal cutting in and out
⚠️ Related system working sometimes but not consistently
⚠️ Reduced engine performance

Common Causes

🔍 Loose or intermittent connection at Transmission Range Sensor
🔍 Wire chafing causing intermittent contact
🔍 Transmission Range Sensor failing under heat or vibration
🔍 Corroded connector pins with partial contact

Frequently Asked Questions

What does P1702 mean?

P1702 indicates: Transmission Range Sensor Circuit Intermittent. The vehicle's computer has detected that the Transmission Range Sensor is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1702?

Yes, P1702 is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.

How much does it cost to fix P1702?

Repair costs for P1702 typically range from $30 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and reseat all Transmission Range Sensor connectors
🔧 Repair chafed or damaged wiring in Transmission Range Sensor circuit
🔧 Replace Transmission Range Sensor if failing intermittently

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1702: Transmission Range Sensor Circuit Intermittent