C1937 Code - Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC
Quick Answer
The Front Active Stabilizer Control ECU consists of a metal board, control board, power source IC, step-up circuit, Electrically Erasable Programmable Read-Only Memory (EEPROM), and other parts. Common causes include Faulty Front Active Stabilizer Control ECU, Faulty Front Active Stabilizer Relay, Faulty Rear Active Stabilizer Relay. 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
- C1937 indicates Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC.
- Common causes
- Common causes include Faulty Front Active Stabilizer Control ECU, Faulty Front Active Stabilizer Relay, Faulty Rear Active Stabilizer Relay.
- 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 C1937 Description
What are the Possible Causes of the DTC C1937?
- Faulty Front Active Stabilizer Control ECU
- Faulty Front Active Stabilizer Relay
- Faulty Rear Active Stabilizer Relay
- Front Active Stabilizer Control ECU harness is open or shorted
- Front Active Stabilizer Control ECU circuit poor electrical connection
How to Fix the DTC C1937?
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 C1937 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.
Need more information about the C1937 code?
Need more information on how to fix the C1937 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1937 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C1937 Lexus — Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC
- C1937 Toyota — Malfunction In Front Active Stabilizer Control ECU Main Relay Power Supply IC
Frequently Asked Questions about C1937 Code
1. What are the common symptoms of OBDII code C1937?
- Common symptoms of OBDII code C1937 include stability control system malfunctions, warning lights illuminated on the dashboard, and potential loss of stability during driving.
2. What causes the OBDII code C1937 to trigger?
- The OBDII code C1937 is triggered when there is a malfunction in the front active stabilizer control ECU main relay power supply IC, which can be caused by electrical issues or a faulty relay.
3. How can I diagnose the OBDII code C1937?
- Diagnosing the OBDII code C1937 typically involves using a diagnostic scanner to read the fault codes, checking the stability control system components for any visible damage, and testing the front active stabilizer control ECU main relay power supply IC.
4. Can I still drive my vehicle with the OBDII code C1937 present?
- It is not recommended to drive your vehicle with the OBDII code C1937 present, as it can affect the stability control system and pose a safety risk. It's best to address the issue promptly.
5. How can I repair the OBDII code C1937?
- Repairing the OBDII code C1937 may involve replacing the front active stabilizer control ECU main relay power supply IC, checking and repairing any damaged wiring or connections, and clearing the fault codes with a diagnostic scanner.
6. Are there any DIY tips for fixing the OBDII code C1937?
- While some basic troubleshooting steps can be taken, such as checking fuses and connections, it is recommended to have a qualified mechanic diagnose and repair the issue related to code C1937 due to the complexity of the stability control system.
7. Is the OBDII code C1937 a serious issue?
- The OBDII code C1937 should be taken seriously as it can affect the stability control system of the vehicle, potentially leading to loss of control while driving. It is important to address this issue promptly.
8. Can weather conditions affect the triggering of OBDII code C1937?
- Extreme weather conditions, such as excessive heat or moisture, can sometimes exacerbate electrical issues leading to the triggering of OBDII code C1937. It's important to keep the vehicle well-maintained to prevent such occurrences.
9. How long does it take to repair OBDII code C1937?
- The repair time for OBDII code C1937 can vary depending on the exact cause of the issue and the availability of parts. It is advisable to consult with a professional technician for an accurate estimate of repair time.
10. Is it necessary to reset the stability control system after fixing OBDII code C1937?
- It is recommended to reset the stability control system after fixing OBDII code C1937 to ensure that any stored fault codes are cleared and the system can recalibrate properly. This can be done using a diagnostic scanner or by disconnecting the battery for a short time.
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