AutoCodes – Lincoln – P1702 Lincoln

P1702 Lincoln Code - Transmission Range Circuit Failure

Quick Answer

The Transmission Range (TR) circuits indicating an invalid pattern in TR D. Common causes include Faulty Transmission Range (TR) sensor, Transmission Range (TR) sensor harness is open or shorted, Transmission Range (TR) sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1702 Lincoln indicates Transmission Range Circuit Failure.
Common causes: Common causes include Faulty Transmission Range (TR) sensor, Transmission Range (TR) sensor harness is open or shorted, Transmission Range (TR) sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,070

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1702 Lincoln Description

The Transmission Range (TR) circuits indicating an invalid pattern in TR D. The Condition caused by a short to ground or an open in P/N, D, R, 2, or 1 circuit. Open in the tail lamp ground circuit. This Diagnostic Trouble Code (DTC) can be set by an incorrectly adjusted TR sensor.

OBDII Code P1702 Lincoln - Transmission Range Circuit Failure - AutoCodes.com — P1702 Lincoln Code - Transmission Range Circuit Failure

What does this mean?

What are the Possible Causes of the DTC P1702 Lincoln?

Faulty Transmission Range (TR) sensor
Transmission Range (TR) sensor harness is open or shorted
Transmission Range (TR) sensor circuit poor electrical connection

How to Fix the DTC P1702 Lincoln?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1702 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1702 Lincoln Code

1. What are the common symptoms of OBDII code P1702 in a Lincoln related to transmission range circuit failure?

- Common symptoms include difficulty shifting gears, erratic shifting behavior, illuminated transmission warning light, and the transmission being stuck in one gear.

2. What are the potential causes of the OBDII code P1702 in a Lincoln for transmission range circuit failure?

- Possible causes can include faulty transmission range sensor, damaged wiring or connectors in the transmission range circuit, or a malfunctioning PCM (powertrain control module).

3. How can I diagnose the OBDII code P1702 in a Lincoln for transmission range circuit failure?

- Diagnosis involves checking the transmission range sensor for proper operation, inspecting the wiring and connectors for damage or corrosion, and using a diagnostic scanner to read the code and determine the exact issue.

4. Can I continue driving my Lincoln with OBDII code P1702 related to transmission range circuit failure?

- It is not recommended to continue driving the vehicle with this code as it can lead to further transmission damage and potential safety issues. Immediate attention and repair are advised.

5. How can I repair OBDII code P1702 in a Lincoln for transmission range circuit failure?

- Repair may involve replacing the transmission range sensor, repairing or replacing damaged wiring or connectors, or reprogramming the PCM. Consult a professional mechanic for an accurate diagnosis and repair.

6. Are there any DIY tips for addressing OBDII code P1702 in a Lincoln?

- DIY tips include checking the transmission range sensor connections for tightness, inspecting the wiring visually for any obvious damage, and ensuring the transmission fluid level is correct.

7. Can a faulty transmission range sensor cause OBDII code P1702 in a Lincoln?

- Yes, a faulty transmission range sensor can trigger the P1702 code as it is responsible for providing input to the PCM about the transmission gear position.

8. Is it common for OBDII code P1702 in a Lincoln to reoccur after repairs are made?

- If the root cause of the issue is not properly addressed during the initial repair, the code may reoccur. Thorough diagnosis and proper repair are essential to prevent recurrence.

9. How long does it typically take to repair OBDII code P1702 related to transmission range circuit failure in a Lincoln?

- Repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day for a mechanic to diagnose and repair the problem effectively.

10. Can resetting the PCM clear OBDII code P1702 in a Lincoln temporarily?

- Resetting the PCM may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear once the problem resurfaces.