ABS Longitudinal Accelerometer Performance
The C0099 code means the vehicle's onboard diagnostic system has detected: ABS Longitudinal Accelerometer Performance. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $150 - $500 (parts and labor)
Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.
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Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.
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Common Symptoms
- Stability control warning
- ABS warning light on
- Hill start assist disabled
- Traction control inoperative
Probable Causes (Ranked by Likelihood)
- Failed longitudinal accelerometer Very High
- Damaged accelerometer wiring High
- Sensor mounting issue Moderate
- ABS module input circuit malfunction Low
Step-by-Step Diagnostic Procedure
-
Read longitudinal accelerometer data on scan tool
-
Inspect accelerometer wiring and connector
-
Check sensor mounting orientation
-
Verify sensor readings during acceleration and braking
Frequently Asked Questions
What does code C0099 mean?
C0099 indicates a fault in the longitudinal accelerometer performance that affects ABS and related safety systems.
Can I drive with C0099?
You can drive short distances, but ABS and stability control may be affected.
How much does it cost to fix C0099?
Typical repair costs range from $150 - $500 including parts and labor.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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