P0702 Pontiac 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 Pontiac 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 Pontiac Description
What are the Possible Causes of the DTC P0702 Pontiac?
- 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 Pontiac?
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 Pontiac 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 Pontiac Code
1. What does the OBDII code P0702 mean on a Pontiac?
P0702 indicates a "Transaxle Control System Low Voltage," meaning there’s an issue with the electrical system controlling the transmission.
2. What are the common symptoms of a P0702 code on a Pontiac?
Symptoms may include transmission shifting issues, stalling, reduced engine performance, the transmission stuck in limp mode, or the Check Engine Light turning on.
3. What causes the P0702 code in a Pontiac?
Common causes include a weak or failing battery, damaged wiring or connectors, a faulty transmission control module (TCM), or issues with the alternator.
4. Can a low battery cause the P0702 code in a Pontiac?
Yes, a low or failing battery can cause insufficient voltage to the transaxle control system, triggering the P0702 code.
5. How do you diagnose a P0702 code on a Pontiac?
Diagnosis involves checking the battery voltage, inspecting wiring and connectors for damage, testing the alternator, and scanning the TCM for additional codes.
6. Can I drive my Pontiac with a P0702 code?
While it may be drivable, continuing to drive with this code can cause further damage to the transmission. It’s best to address the issue promptly.
7. How do you fix a P0702 code on a Pontiac?
Repairs may include replacing or charging the battery, repairing or replacing damaged wiring, addressing alternator issues, or replacing a faulty TCM.
8. How much does it cost to fix a P0702 code on a Pontiac?
The repair cost varies depending on the cause, ranging from $50 for a battery charge to $1,000 or more for a TCM replacement.
9. Can a bad alternator cause the P0702 code on a Pontiac?
Yes, a malfunctioning alternator can lead to low voltage in the transaxle control system, triggering the P0702 code.
10. Will clearing the P0702 code fix the problem on a Pontiac?
Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return.
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