Component Location
General Description

The SRS is equipped with a voltage control circuit (DC-DC converter) in the SRSCM to maintain certain voltage and current for the system. When the battery voltage is too higher than speciation due to alternator voltage regulator malfunction or other reasons the warning lamp remain lit up and the DTC is a B1111 code is not stored and the voltage returns to normal, the SRS warning light automatically goes off.

DTC Description

- When the SRS warning light remain lite up and the DTC is the normal code,this means a voltage source drops or high.

- This malfunction is not stored in memory by the SRS Control Module and if the power source voltage returns to normal,the SRS warning light will automatically go out.

- If a code not listed on the chart is displayed,the SRS Control Module is faulty.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Detect system voltage

● SRSCM poor ground contact.

● Alternator voltage regulator malfunction

● SRSCM faulty.

Enable Conditions

● Ignition "ON"

Threshold Value

● 16.0V < Vbat ≤ 24.0V

Diagnostic Time

Qualification

● 12 sec remaining

De-Qualification

● 10 sec remaining

Specification

Test Condition

Battery Output Voltage (V)

Idle & WOT

10-16V

Schematic Diagram
note
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