P1702 Code - Transmission Range Circuit Failure
Quick Answer
The P1702 diagnostic trouble code indicates a transmission range circuit failure. Common causes include Faulty transmission range sensor, Damaged wiring or connectors in the transmission range circuit, Malfunctioning transmission control module. 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 indicates Transmission Range Circuit Failure.
- Common causes
- Common causes include Faulty transmission range sensor, Damaged wiring or connectors in the transmission range circuit, Malfunctioning transmission control module.
- 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 P1702 Description
The P1702 diagnostic trouble code indicates a transmission range circuit failure. This means that there is an issue with the communication between the transmission range sensor and the vehicle's onboard computer. The transmission range sensor is responsible for informing the vehicle's computer about the gear position (Park, Reverse, Neutral, Drive, etc.), allowing the vehicle to operate smoothly and efficiently. When this circuit fails, it can lead to a variety of issues with the vehicle's transmission system, affecting its performance and overall drivability.
Common Causes of P1702
- Faulty transmission range sensor
- Damaged wiring or connectors in the transmission range circuit
- Malfunctioning transmission control module
- Issues with the vehicle's computer system
- Moisture or corrosion affecting the transmission range circuit
Symptoms of P1702
- Difficulty shifting gears or shifting gears erratically
- Vehicle not starting or getting stuck in a specific gear
- Harsh shifting or slipping gears
- Poor fuel economy
- Illumination of the Check Engine Light
How to Fix P1702
- Diagnose the specific cause of the transmission range circuit failure using a diagnostic scanner to retrieve trouble codes and perform a thorough inspection of the transmission range sensor, wiring, and connectors.
- Replace the faulty transmission range sensor if necessary, ensuring it is properly calibrated and aligned with the gear positions.
- Repair or replace any damaged wiring or connectors in the transmission range circuit to ensure proper communication between the sensor and the vehicle's computer.
- Check and reset the transmission control module and the vehicle's computer system to clear any stored trouble codes and recalibrate the transmission range circuit.
- Test drive the vehicle to ensure the transmission is shifting correctly and that the issue has been resolved.
Cost to Fix P1702
The typical repair costs for addressing a transmission range circuit failure can range from $200 to $500, including parts and labor. However, the actual cost may vary depending on the specific cause of the issue, the make and model of the vehicle, and the labor rates at the auto repair shop. It is advisable to consult with a professional mechanic or service center to get an accurate estimate for your specific situation.
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Code P1702 Information for Specific Makes
- P1702 Chrysler — Primary Oil Pressure Sensor / Secondary Oil Pressure Sensor Correlation
- P1702 Dodge — Primary Oil Pressure Sensor / Secondary Oil Pressure Sensor Correlation
- P1702 Ford — Transmission Range Circuit Failure
- P1702 Hyundai — Throttle Position Sensor Malfunction Adjustment
- P1702 Infiniti — Transmission Control Module RAM
- P1702 Jeep — Primary Oil Pressure Sensor / Secondary Oil Pressure Sensor Correlation
- P1702 Land Rover — Transfer Box Signal Line Communication Error
- P1702 Lincoln — Transmission Range Circuit Failure
- P1702 Mazda — Transmission Range Sensor Circuit Malfunction
- P1702 Mercury — Transmission Range Circuit Failure
- P1702 Nissan — Transmission Control Module RAM
- P1702 RAM — Primary Oil Pressure Sensor / Secondary Oil Pressure Sensor Correlation
- P1702 Subaru — Automatic Transmission Diagnosis Signal Voltage Low
Frequently Asked Questions about P1702 Code
1. What are common symptoms of OBDII code P1702 (Transmission Range Circuit Failure)?
- Common symptoms include erratic shifting, inability to shift gears, and the transmission getting stuck in one gear.
2. What are the possible causes of OBDII code P1702?
- Possible causes include a faulty transmission range sensor, damaged wiring or connectors in the transmission range circuit, or a failed PCM (powertrain control module).
3. How can I diagnose OBDII code P1702?
- Diagnosis typically involves using a scan tool to retrieve the code, checking the transmission range sensor for proper operation, and inspecting the wiring and connectors for any damage.
4. Can I drive my vehicle with OBDII code P1702?
- It is not recommended to drive your vehicle with this code, as it can lead to further transmission damage or safety hazards. It is best to address the issue promptly.
5. How can I repair OBDII code P1702?
- Repairing this code may involve replacing the transmission range sensor, repairing or replacing damaged wiring or connectors, or reprogramming the PCM.
6. Is it possible to reset OBDII code P1702 without fixing the underlying issue?
- Resetting the code without fixing the underlying issue may temporarily clear the code, but it will likely reappear once the problem persists. It is best to address the root cause of the code.
7. Can a DIYer fix OBDII code P1702 at home?
- Depending on your automotive repair skills and access to tools, you may be able to fix this code at home by following repair guides and tutorials. However, professional help may be needed for more complex repairs.
8. How much does it cost to repair OBDII code P1702?
- The cost of repairing this code can vary depending on the underlying issue, parts needed, and labor costs. It is recommended to get a diagnosis from a mechanic to determine the exact cost.
9. Will OBDII code P1702 cause damage to other vehicle components if left unaddressed?
- Ignoring this code can potentially cause further damage to the transmission and other related components, leading to more costly repairs in the future. It is best to address the issue promptly.
10. How long does it typically take to repair OBDII code P1702?
- The repair time for this code can vary depending on the exact cause of the issue and the complexity of the repair. It is best to consult with a mechanic for a more accurate estimate of the repair time.
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