P0705 – Transmission Range Sensor Circuit Malfunction
Introduction
Encountering the P0705 code in your Chery? Here is a complete guide to its causes, symptoms, and solutions.
The **P0705 error** is most likely caused by a faulty transmission range sensor or its circuit. This issue has a **medium severity level** and requires **urgent repair** to prevent further damage to the transmission system.
What does code P0705 mean
The P0705 trouble code is a generic OBD2 code that indicates a malfunction in the transmission range sensor circuit. This sensor plays a crucial role in monitoring the transmission’s gear position and sending signals to the Engine Control Module (ECM) to adjust engine performance accordingly. The affected system is the transmission control system, which may impact engine performance, fuel efficiency, and overall vehicle safety.
Common Chery models affected
The P0705 code can affect various Chery models, including:
- Chery Tiggo
- Chery Arrizo
- Chery Fulwin
- Chery Cowin
- Chery Karry
Symptoms table
| Symptom | Frequency of Occurrence |
|---|---|
| Harsh shifting or slipping | High |
| Difficulty engaging gears | Medium |
| Reduced fuel efficiency | Medium |
| Transmission warning light illumination | High |
| Erratic engine performance | Low |
| Stalling or hesitation | Individual |
| Unusual transmission noises | Low |
Causes table
| Potential Cause | Probability |
|---|---|
| Faulty transmission range sensor | High |
| Corrosion or damage to the sensor circuit | Medium |
| ECM software issues or calibration problems | Low |
| Wiring harness damage or chafing | Medium |
| Transmission mechanical issues, such as worn gears or bearings | Low |
Real-world driving scenarios
When driving with the P0705 code, the vehicle may exhibit erratic shifting patterns, especially during acceleration or deceleration. The driver may experience harsh shifting, slipping, or hesitation, particularly when shifting from first to second gear or when downshifting. In some cases, the vehicle may refuse to engage gears, leading to reduced fuel efficiency and increased engine strain.
Diagnostic steps
To diagnose the P0705 code, follow these steps:
1. Use a scan tool to retrieve the trouble code and monitor the transmission range sensor’s voltage output.
2. Inspect the sensor and its circuit for signs of damage, corrosion, or wear.
3. Check the wiring harness for any damage or chafing.
4. Perform a mechanical inspection of the transmission to rule out any internal issues.
5. Consult the Chery service manual for specific diagnostic procedures and troubleshooting guides.
Common diagnostic mistakes
Common mistakes when diagnosing the P0705 code include:
1. Failing to consult the service manual for specific diagnostic procedures.
2. Not inspecting the sensor and its circuit thoroughly.
3. Not checking the wiring harness for damage or chafing.
4. Replacing the sensor without verifying the circuit’s integrity.
5. Not performing a mechanical inspection of the transmission.
When not to replace the sensor
Replacing the transmission range sensor may not solve the issue if:
1. The sensor circuit is damaged or corroded.
2. The ECM has software issues or calibration problems.
3. The wiring harness is damaged or chafed.
4. The transmission has internal mechanical issues.
How to fix
To fix the P0705 code, follow these steps:
1. Inspect and repair the sensor circuit, if necessary.
2. Replace the faulty transmission range sensor.
3. Update the ECM software or recalibrate the transmission control system.
4. Repair or replace the wiring harness, if damaged.
5. Perform a mechanical inspection and repair of the transmission, if necessary.
Severity level
The P0705 code has a medium severity level, as it can cause erratic shifting patterns, reduced fuel efficiency, and increased engine strain. The driving risk is medium, and the urgency of repair is soon. The engine impact is significant, as the faulty transmission range sensor can lead to premature wear on the transmission and engine components.
Is it safe to drive with this code
Driving with the P0705 code is not recommended, as it can cause unpredictable shifting patterns, reduced fuel efficiency, and increased engine strain. The risk of transmission damage or failure is high, and the driver may experience erratic engine performance, stalling, or hesitation.
Estimated repair cost
The estimated repair cost for the P0705 code can range from $200 to $1,500, depending on the extent of the damage and the necessary repairs.
Preventive maintenance tips
To prevent the P0705 code, regular maintenance is essential. This includes:
1. Regularly inspecting the transmission fluid level and condition.
2. Updating the ECM software and recalibrating the transmission control system.
3. Inspecting the wiring harness and sensor circuit for signs of damage or wear.
4. Performing routine mechanical inspections of the transmission.
When diagnosing the P0705 code, it is essential to consult the Chery service manual for specific diagnostic procedures and troubleshooting guides. A thorough inspection of the sensor circuit and wiring harness is crucial to identifying the root cause of the issue. In some cases, the faulty transmission range sensor may be a symptom of a larger problem, such as a faulty ECM or transmission mechanical issue.
Tools required for diagnostics
The following tools are required for diagnosing the P0705 code:
- Scan tool
- Multimeter
- Wiring diagram
- Service manual
- Transmission fluid pressure test kit
Technical reference values
The following technical reference values are relevant to the P0705 code:
| Parameter | Normal Range | Fault Indication Behavior |
|---|---|---|
| Transmission range sensor voltage | 0.5-4.5V | Out-of-range voltage indicates a faulty sensor or circuit |
| Transmission fluid pressure | 20-40 psi | Low pressure indicates a transmission mechanical issue |
| ECM software version | Depends on vehicle make and model | Outdated software may cause transmission control issues |
FAQ
1. What does code P0705 mean?
The P0705 code indicates a malfunction in the transmission range sensor circuit, which can cause erratic shifting patterns, reduced fuel efficiency, and increased engine strain. The **P0705 trouble code** is a generic OBD2 code that requires further diagnostics according to the Chery service manual. When **diagnosing the P0705 code**, it is essential to inspect the sensor circuit and wiring harness for signs of damage or wear.
2. Is it safe to drive with code P0705?
No, it is not recommended to drive with the **P0705 code**, as it can cause unpredictable shifting patterns, reduced fuel efficiency, and increased engine strain. The risk of transmission damage or failure is high, and the driver may experience erratic engine performance, stalling, or hesitation. **Fixing the P0705 code** requires a thorough inspection of the sensor circuit and wiring harness.
3. Will the code clear itself?
No, the **P0705 error** will not clear itself. The code requires a thorough diagnosis and repair to resolve the issue. In some cases, the faulty transmission range sensor may be a symptom of a larger problem, such as a faulty ECM or transmission mechanical issue. When **fixing the P0705 code**, it is essential to consult the Chery service manual for specific diagnostic procedures and troubleshooting guides.
4. Does the sensor need replacement?
The transmission range sensor may need replacement if it is faulty or damaged. However, it is essential to inspect the sensor circuit and wiring harness to determine the root cause of the issue. In some cases, the sensor may be functioning correctly, but the circuit or wiring harness may be damaged. **Diagnosing the P0705 code** requires a thorough inspection of the sensor circuit and wiring harness.
5. How much does it cost to fix?
The estimated repair cost for the **Chery P0705** code can range from $200 to $1,500, depending on the extent of the damage and the necessary repairs. The cost of replacement parts, labor, and any additional repairs will be included in the total cost. When **fixing the P0705 code**, it is essential to consult the Chery service manual for specific diagnostic procedures and troubleshooting guides.
Related trouble codes
The following trouble codes are related to the P0705 code:
- Error P0700 on Chery — Transmission control system malfunction
- Error P0702 on Chery — Transmission range sensor circuit low input
- Error P0703 on Chery — Transmission range sensor circuit high input
- Error P0715 on Chery — Transmission range sensor circuit intermittent