U1881
Electro-Hydraulic Power Steering Module Lost Communication With Energy Storage Control Module
U1881 is an OBD-II diagnostic trouble code meaning: Electro-Hydraulic Power Steering Module Lost Communication With Energy Storage Control Module. Common causes: can bus break or damage, short circuit in communication circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light or EPS Light Is On
- Increased steering effort
- Intermittent operation of the power steering
- Other related CAN bus fault codes
Causes
- CAN bus break or damage
- Short circuit in communication circuit
- EHPS module failure
- ESCM module malfunction
- Problems with module power supply
How to Fix
- Check the integrity of the CAN bus between modules
- Inspect connectors and wiring harness for damage
- Check power supply and grounding of EHPS and ESCM modules
- Scan other modules for related codes
- If necessary, replace the faulty module or wiring
Related codes
FAQ
What does the U1881 code mean?
U1881 is an OBD-II diagnostic trouble code that indicates: Electro-Hydraulic Power Steering Module Lost Communication With Energy Storage Control Module
What causes a U1881 error code?
The most common causes of U1881 include: CAN bus break or damage; Short circuit in communication circuit; EHPS module failure; ESCM module malfunction.
How do I fix a U1881 diagnostic trouble code?
To fix U1881: Check the integrity of the CAN bus between modules. Inspect connectors and wiring harness for damage. Check power supply and grounding of EHPS and ESCM modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1881?
Do not drive — repair immediately
How much does it cost to fix U1881?
The estimated repair cost for U1881 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat