C2179 2014 Toyota RAV4 Code - Tire Pressure Monitor ECU Communication Stop
Quick Answer
The Main Body ECU (Multiplex Network Body ECU) sends signals to the Tire Pressure Warning ECU and Receiver via a direct line. Common causes include Faulty Main Body ECU (Multiplex Network Body ECU), Main Body ECU (Multiplex Network Body ECU) harness is open or shorted, Main Body ECU (Multiplex Network Body ECU) 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
- C2179 2014 Toyota RAV4 indicates Tire Pressure Monitor ECU Communication Stop.
- Common causes
- Common causes include Faulty Main Body ECU (Multiplex Network Body ECU), Main Body ECU (Multiplex Network Body ECU) harness is open or shorted, Main Body ECU (Multiplex Network Body ECU) 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 C2179 2014 Toyota RAV4 Description
What are the Possible Causes of the DTC C2179 2014 Toyota RAV4?
- Faulty Main Body ECU (Multiplex Network Body ECU)
- Main Body ECU (Multiplex Network Body ECU) harness is open or shorted
- Main Body ECU (Multiplex Network Body ECU) circuit poor electrical connection
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2179 2014 Toyota RAV4?
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 C2179 2014 Toyota RAV4 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 C2179 2014 Toyota RAV4 Code
1. What does OBDII code C2179 mean on a 2014 Toyota RAV4?
Code C2179 indicates that the Tire Pressure Monitor ECU has stopped communicating with other vehicle systems, which may interfere with the tire pressure monitoring function.
2. What are the common symptoms of code C2179 in a 2014 Toyota RAV4?
Common symptoms include the TPMS warning light staying illuminated, inaccurate tire pressure readings, or no readings displayed on the dashboard.
3. What causes code C2179 to appear in a 2014 Toyota RAV4?
Common causes include a malfunctioning TPMS control module, damaged wiring or connectors, a dead TPMS sensor battery, or software communication issues.
4. How can I fix code C2179 on my 2014 Toyota RAV4?
Repairs may involve inspecting and repairing damaged wiring or connectors, replacing faulty TPMS sensors, or reprogramming or replacing the TPMS ECU.
5. Can I drive my 2014 Toyota RAV4 with code C2179 active?
While the vehicle may still be drivable, the TPMS system may not function properly, which can increase the risk of driving with underinflated or overinflated tires.
6. How much does it cost to repair code C2179 on a 2014 Toyota RAV4?
Costs vary depending on the issue, but repairing wiring or replacing a TPMS sensor typically costs $50–$200, while replacing the TPMS ECU may cost $300–$600 or more.
7. How do I diagnose code C2179 on my 2014 Toyota RAV4?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting TPMS wiring and connectors, testing sensors, and checking for communication with the TPMS ECU.
8. Can a weak car battery cause code C2179 in a 2014 Toyota RAV4?
Yes, a weak or failing car battery can cause voltage drops or communication issues, which may trigger this code.
9. Do I need to reprogram the TPMS system after fixing code C2179 on my 2014 Toyota RAV4?
In some cases, reprogramming or recalibrating the TPMS system may be necessary after repairing or replacing components to ensure proper communication.
10. Could aftermarket wheels or tires trigger code C2179 in a 2014 Toyota RAV4?
Yes, if the aftermarket wheels or tires are not compatible with the TPMS sensors or if the sensors were not transferred or programmed correctly, this code may appear.
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