P1902
CAN Data Bus Multifunction Control Module 2
P1902 is an OBD-II diagnostic trouble code meaning: CAN Data Bus Multifunction Control Module 2. Common causes: multifunction control module 2 fault, open or short circuit in the can bus. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Unstable engine operation
- Malfunctions of various vehicle systems
- Lost connection with some sensors
- Problems with gear shifting (if the module is connected to the transmission)
Causes
- Multifunction control module 2 fault
- Open or short circuit in the CAN bus
- Oxidation or damage to contacts in connectors
- Module power problems
- Software failure in the control module
How to Fix
- Check the integrity of the CAN bus wiring
- Inspect and clean the contacts in the module connectors
- Check the power supply and ground of the module
- Scan all systems for additional errors
- If necessary, replace multifunction control module 2
Related codes
Error P1902 by Vehicle Brand
FAQ
What does the P1902 code mean?
P1902 is an OBD-II diagnostic trouble code that indicates: CAN Data Bus Multifunction Control Module 2
What causes a P1902 error code?
The most common causes of P1902 include: Multifunction control module 2 fault; Open or short circuit in the CAN bus; Oxidation or damage to contacts in connectors; Module power problems.
How do I fix a P1902 diagnostic trouble code?
To fix P1902: Check the integrity of the CAN bus wiring. Inspect and clean the contacts in the module connectors. Check the power supply and ground of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1902?
Yes, but get it checked soon
How much does it cost to fix P1902?
The estimated repair cost for P1902 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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