C0870 Pontiac Code - Control Module Voltage Reference
Quick Answer
The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Battery voltage, Faulty Control Module, Control Module harness is open or shorted. 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
- C0870 Pontiac indicates Control Module Voltage Reference.
- Common causes
- Common causes include Battery voltage, Faulty Control Module, Control Module harness is open or shorted.
- 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 C0870 Pontiac Description
What are the Possible Causes of the DTC C0870 Pontiac?
- Battery voltage
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC C0870 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 C0870 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 C0870 Pontiac Code
1. What does OBDII code C0870 mean on a Pontiac?
C0870 indicates an issue with the control module voltage reference circuit, which is responsible for providing consistent voltage to various sensors.
2. What are the common symptoms of code C0870 in a Pontiac?
Symptoms may include the check engine light or service light turning on, erratic sensor readings, and potential performance issues like hesitation or stalling.
3. What causes code C0870 to appear on a Pontiac?
Common causes include a faulty control module, damaged wiring or connectors in the voltage reference circuit, or a weak vehicle battery.
4. Can a weak battery cause code C0870 in a Pontiac?
Yes, a weak or failing battery can result in insufficient voltage to the control module, triggering code C0870.
5. How do you diagnose the C0870 code on a Pontiac?
Diagnosis involves inspecting the voltage reference circuit wiring and connectors, testing the battery and alternator, and checking the control module for faults.
6. Is it safe to drive with code C0870 in a Pontiac?
It’s not recommended, as voltage issues can lead to erratic sensor operation and potentially unsafe driving conditions.
7. How do you fix code C0870 in a Pontiac?
Repairs may include replacing damaged wiring, repairing or replacing connectors, recharging or replacing the battery, or replacing the control module if necessary.
8. Can a bad alternator cause code C0870 in a Pontiac?
Yes, a failing alternator can cause voltage irregularities, which may trigger the C0870 code.
9. What tools are needed to troubleshoot code C0870 in a Pontiac?
You’ll need an OBDII scanner, a multimeter to check voltages, and potentially wiring diagrams for your specific Pontiac model.
10. Can clearing the C0870 code fix the problem in a Pontiac?
Clearing the code without addressing the underlying issue will only temporarily remove the warning, and the code is likely to return.
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