P0702 Chevrolet Code - Transaxle Control System Low Voltage
Quick Answer
Each transaxle solenoid (TCC, pressure control, shift 2, shift 3, and shift 4) ground is controlled independently by the Powertrain Control Module (PCM). Common causes include Faulty Powertrain Control Module (PCM), Powertrain Control Module harness is open or shorted, Powertrain Control Module 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
- P0702 Chevrolet indicates Transaxle Control System Low Voltage.
- Common causes
- Common causes include Faulty Powertrain Control Module (PCM), Powertrain Control Module harness is open or shorted, Powertrain Control Module 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.
Code P0702 Chevrolet Description
What are the Possible Causes of the DTC P0702 Chevrolet?
- Faulty Powertrain Control Module (PCM)
- Powertrain Control Module harness is open or shorted
- Powertrain Control Module circuit poor electrical connection
How to Fix the DTC P0702 Chevrolet?
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 P0702 Chevrolet 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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Frequently Asked Questions about P0702 Chevrolet Code
1. What does the OBDII code P0702 mean on a Chevrolet?
P0702 indicates a low voltage issue in the transaxle control system, which manages the transmission's electronic operations.
2. What are the common symptoms of code P0702 in a Chevrolet?
Symptoms include transmission slipping, harsh shifting, delayed gear engagement, or the vehicle going into limp mode.
3. What causes the P0702 code to appear in a Chevrolet?
Common causes include a weak or failing battery, faulty Transmission Control Module (TCM), damaged wiring, or corroded electrical connections.
4. Can a bad alternator cause the P0702 code in a Chevrolet?
Yes, a failing alternator can cause low voltage, which may trigger the P0702 code.
5. How can I diagnose the P0702 code in my Chevrolet?
Begin by checking the battery voltage, inspecting the wiring and connectors to the TCM, and scanning for additional related codes.
6. Can driving with the P0702 code damage my Chevrolet's transmission?
Yes, ignoring the code can lead to further transmission damage if the issue is not resolved promptly.
7. How do I fix the P0702 code on a Chevrolet?
Repairs may involve replacing the battery, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the TCM.
8. Is the P0702 code specific to Chevrolet vehicles?
No, P0702 is a generic OBDII code found in many vehicles, but the specific causes and repairs can vary by make and model.
9. How much does it cost to repair a P0702 code on a Chevrolet?
Costs can range from $50 for minor wiring repairs to $1,000 or more if the TCM needs to be replaced.
10. Can a software update fix the P0702 code in my Chevrolet?
In some cases, a TCM software update from the dealership may resolve voltage-related issues triggering the P0702 code.
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