C0599

Brake Booster Control Module Missing Calibration

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

The control lamp for the brake system malfunction comes on
Increased braking budget
Folder brake pedal resistance
Lost braking assistance functions (e.g., hill start assist)

Causes

Not wire thousands of module calibration after replacement
Module software failure
Wiring harness damage
Malfunction.g., brake booster control module

How to Fix

Jagaosticize the brake booster control unit (scan for errors).
Check the integrity of the wiring harness and connections.
If necessary, update or reflash the module software.
Perform module calibration procedure using diagnostic equipment.
If the fault persists, replace the brake booster control module.

Related codes

C05A0 C05A1 C0050