OBD Guide
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U1898

Starter/Generator Control Module Lost Communication With Hybrid Control Module

U1898 is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module Lost Communication With Hybrid Control Module. Common causes: malfunction of the starter-generator control module, hybrid control module malfunction. Estimated repair cost: $22–222.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–222 (est.)

Symptoms

  • Malfunction indicator light (MIL) is on
  • Error message on the dashboard
  • Problems starting the engine
  • Reduced performance of the hybrid system
  • Inability to charge battery

Causes

  • Malfunction of the starter-generator control module
  • Hybrid control module malfunction
  • Problems with wiring or connectors
  • Problems in the CAN network
  • Low battery voltage

How to Fix

  1. Check wiring and connectors between modules
  2. Check battery voltage
  3. Check the CAN network for errors
  4. Check control modules for damage
  5. Replace the faulty control module

Related codes

U1000U1100U0100

FAQ

What does the U1898 code mean?

U1898 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module Lost Communication With Hybrid Control Module

What causes a U1898 error code?

The most common causes of U1898 include: Malfunction of the starter-generator control module; Hybrid control module malfunction; Problems with wiring or connectors; Problems in the CAN network.

How do I fix a U1898 diagnostic trouble code?

To fix U1898: Check wiring and connectors between modules. Check battery voltage. Check the CAN network for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1898?

Yes, but get it checked soon

How much does it cost to fix U1898?

The estimated repair cost for U1898 is $22–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat