C0523

Multi-axis Acceleration Sensor Module B Intermittent/Erratic

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

SRS malfunction indicator is on
Restraint system failure
Incorrect operation of airbags or pretensioners

Causes

Damage to multi-component acceleration sensor B
Short circuit in wiring harness (harness)
Oxidation of contacts in connectors
Mechanical damage to the module (for example, after an accident)
Internal malfunction of the SRS control unit

How to Fix

Check the visual condition of the sensor and its connectors
Scan the SRS system to confirm the malfunction
Check the integrity of the wiring harness and the sensor power supply
If necessary, replace the sensor or restore the electrical circuit
Reset errors and test the system

Related codes

C0520 C0521 C0522 C0524