P1246 Mitsubishi Code - Communication Error
Quick Answer
The P1246 code in Mitsubishi vehicles indicates a communication error between the engine control module (ECM) and the transmission control module (TCM). Common causes include Faulty wiring or loose connections between ECM and TCM, Malfunctioning ECM or TCM, Software issues or glitches in communication protocols. 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
- P1246 Mitsubishi indicates Communication Error.
- Common causes
- Common causes include Faulty wiring or loose connections between ECM and TCM, Malfunctioning ECM or TCM, Software issues or glitches in communication protocols.
- 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 P1246 Mitsubishi Description
The P1246 code in Mitsubishi vehicles indicates a communication error between the engine control module (ECM) and the transmission control module (TCM). This error can lead to various issues with the vehicle's performance and drivability. The ECM and TCM work together to ensure smooth operation of the engine and transmission, so any communication breakdown between them can disrupt this coordination.
Common Causes of P1246 Mitsubishi
- Faulty wiring or loose connections between ECM and TCM
- Malfunctioning ECM or TCM
- Software issues or glitches in communication protocols
- Electrical interference from other components
- Water or corrosion damage to connectors
Symptoms of P1246 Mitsubishi
- Rough shifting or hesitation during acceleration
- Poor fuel efficiency
- Transmission slippage
- Stalling or difficulty starting
- Limp mode activation
How to Fix P1246 Mitsubishi
- Begin by conducting a comprehensive diagnostic scan to retrieve the P1246 code and identify the specific communication error.
- Inspect the wiring harness and connectors between the ECM and TCM for any visible damage, corrosion, or loose connections. Repair or replace any damaged components.
- Check for any software updates or reprogramming required for the ECM and TCM to ensure compatibility and proper communication.
- Test the vehicle to confirm that the communication error has been resolved and that the ECM and TCM are functioning correctly.
- Clear the diagnostic trouble codes and perform a final test drive to verify that the issue has been successfully addressed.
Cost to Fix P1246 Mitsubishi
The typical repair costs for a P1246 communication error in a Mitsubishi vehicle can range from $200 to $500, including parts and labor. However, the actual cost may vary depending on the extent of the repairs needed, the specific model of the vehicle, and the shop's labor rates. It is recommended to consult with a qualified mechanic or dealership to obtain a more accurate estimate based on the individual circumstances of the vehicle. Diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150.
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Frequently Asked Questions about P1246 Mitsubishi Code
1. What does the OBDII code P1246 mean for a Mitsubishi?
P1246 indicates a Communication Error, typically caused by a failure in the vehicle's communication network between control modules.
2. What are the common symptoms of a P1246 code in a Mitsubishi?
Symptoms may include warning lights on the dashboard, erratic engine behavior, non-responsive systems, or failure of certain electronic features.
3. What causes the P1246 code on a Mitsubishi vehicle?
Common causes include faulty wiring, damaged connectors, issues with the CAN (Controller Area Network) bus, or a failed control module.
4. Can I drive my Mitsubishi with a P1246 code?
It is not recommended to drive with this code as it may lead to further damage or impact critical systems like the engine or transmission.
5. How can I diagnose the P1246 code on my Mitsubishi?
Diagnose the issue by checking for damaged or corroded wiring, inspecting module connectors, and using a scan tool to evaluate CAN bus communication.
6. Is the P1246 code specific to a certain Mitsubishi model?
No, the P1246 code can appear on any Mitsubishi model equipped with OBDII, though the exact modules involved may vary.
7. How do I fix the P1246 code on a Mitsubishi?
Repairs can include replacing damaged wiring, repairing connectors, reprogramming or replacing faulty modules, or addressing CAN bus issues.
8. Will clearing the P1246 code fix the issue?
Clearing the code with a scan tool may temporarily remove the error, but the underlying issue must be resolved to prevent it from returning.
9. How much does it cost to repair a P1246 code on a Mitsubishi?
The cost can vary widely depending on the root cause, ranging from $50 for minor wiring repairs to over $1,000 for a module replacement.
10. Can a failing battery cause a P1246 code in a Mitsubishi?
Yes, a weak or failing battery can lead to communication errors and may trigger the P1246 code.
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