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Home/DTC Codes/Land Rover/Range Rover L322/2003-2012 4.4L V8/B0089
B0089

SRS Control Module Voltage High

2003-2012 Land Rover Range Rover L322 4.4L V8

High SeverityBodyGeneric (SAE)

Description

The SRS control module is receiving higher than specified operating voltage.

Symptoms

  • Airbag warning light on
  • SRS codes set
  • Electronic component stress

Common Causes

  • Overcharging alternator
  • Faulty voltage regulator
  • Poor ground causing voltage offset
  • Jump start damage

Diagnostic Steps

  1. Check charging system voltage
  2. Test alternator output regulation
  3. Inspect ground connections
  4. Measure voltage at ACM

Repair Notes

Repair charging system. Replace alternator or voltage regulator if overcharging.

Related Codes

B0085SRS Airbag Control Module Internal FaultB0088SRS Control Module Voltage Low

Other Body Codes

B0089 on Other Vehicles

Land Rover Defender 110

2020-2024 3.0L I6 Mild Hybrid

Land Rover Defender 90

2020-2024 3.0L I6 Mild Hybrid

Land Rover Defender V8

2022-2024 5.0L V8 Supercharged

Land Rover Discovery

1994-2004 4.0L V8

Land Rover Discovery

2017-2024 3.0L V6 Supercharged

Land Rover Discovery Sport

2015-2024 2.0L I4 Turbo

Land Rover Freelander

1997-2006 2.5L V6

Land Rover LR2

2007-2014 3.2L I6

Common Questions

What does code B0089 mean on a 2003-2012 Land Rover Range Rover L322?

B0089 stands for "SRS Control Module Voltage High". The SRS control module is receiving higher than specified operating voltage.

What are the symptoms of B0089 on a Land Rover Range Rover L322?

Common symptoms of B0089 include: Airbag warning light on, SRS codes set, Electronic component stress.

What causes B0089 on a 2003-2012 Land Rover Range Rover L322?

Common causes of B0089 include: Overcharging alternator, Faulty voltage regulator, Poor ground causing voltage offset, Jump start damage.

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