C1437 Scion Code - Lost Communication With ECM
Quick Answer
The Skid Control ECU (Brake Actuator Assembly) receives signals from the Engine Control Module (ECM) via the Controller Area Network (CAN) communication system. Common causes include Faulty Skid Control ECU (Brake Actuator Assembly), Skid Control ECU harness is open or shorted, Skid Control 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
- C1437 Scion indicates Lost Communication With ECM.
- Common causes
- Common causes include Faulty Skid Control ECU (Brake Actuator Assembly), Skid Control ECU harness is open or shorted, Skid Control 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 C1437 Scion Description
What are the Possible Causes of the DTC C1437 Scion?
- Faulty Skid Control ECU (Brake Actuator Assembly)
- Skid Control ECU harness is open or shorted
- Skid Control ECU circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC C1437 Scion?
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 C1437 Scion 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 C1437 Scion Code
1. What does OBDII code C1437 mean on a Scion?
C1437 indicates a "Lost Communication With ECM," meaning the ABS module or related systems cannot communicate with the Engine Control Module (ECM).
2. What are common symptoms of code C1437 in a Scion?
Symptoms may include the ABS or traction control light illuminating, intermittent loss of ABS or stability control functionality, and poor overall vehicle performance.
3. What causes the C1437 code to appear in a Scion?
The code can be triggered by damaged wiring, a faulty ECM, a malfunctioning ABS module, or issues with the CAN (Controller Area Network) communication lines.
4. Can a weak battery cause the C1437 code in a Scion?
Yes, a weak or failing battery can lead to communication issues between modules, potentially triggering the C1437 code.
5. How can I diagnose code C1437 in my Scion?
Start by checking for loose or damaged wiring, inspecting the CAN bus connections, and verifying proper power and ground to the ECM and ABS module.
6. Is it safe to drive with the C1437 code active?
Driving may still be possible, but systems like ABS and traction control may not function correctly, increasing the risk of losing control in slippery conditions.
7. How much does it cost to repair code C1437 on a Scion?
Repair costs can vary widely depending on the issue, ranging from $50 for a simple wiring fix to $1,000 or more for ECM or ABS module replacement.
8. Can I clear the C1437 code without fixing the problem?
Clearing the code without addressing the underlying issue may temporarily turn off the warning light, but the code is likely to return.
9. What tools are needed to diagnose the C1437 code?
You'll need an OBDII scanner capable of reading ABS and ECM codes, a multimeter for checking electrical connections, and possibly a wiring diagram for your Scion.
10. What should I check first when troubleshooting the C1437 code?
Begin by inspecting the wiring and connectors between the ECM and ABS module for damage, corrosion, or loose connections.
Discuss the causes and fixes for C1437 Scion OBDII Code
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