Diagnostic Information And Procedures; Bulb Check; Fault Indication; Clearing Fault Codes - Daewoo MATIZ Service Manual

8B – 8 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)

DIAGNOSTIC INFORMATION AND PROCEDURES

BULB CHECK

As soon as the operating voltage is applied to the sens-
ing and diagnostic module (SDM) ignition input, the
SDM activates the warning lamp for a bulb check.
The SDM turns the lamp ON for 4 seconds, and then the
SDM turns the lamp OFF.
During the bulb check, the SDM is not ready to detect a
crash or deploy the supplemental inflatable restraints.

FAULT INDICATION

The sensing and diagnostic module records the sys-
tem's faults in two categories:
D Current faults and the fault code appears "Axx" on the
scan tool display.
D Historic faults, which are those that were detected in
the past, but are no longer active. And the fault code
appears "Sxx" on the scan tool display.
The warning lamp:
D Indicates a fault as soon as it occurs.
D Stays ON, even if a fault is no longer active.
A scan tool connected to the data link connector (DLC):
D Reveals the fault codes.
D Receives serial data transmission through the termi-
nal J (13) of the DLC.
D Receives ground through the terminal A (4) of the
DLC.

CLEARING FAULT CODES

When the sensing and diagnostic module (SDM) re-
ceives the CODE ERASE command from the scan tool,
the SDM:
D Clears the entire fault memory.
D Turns OFF the warning lamp.
D Resets for fault detection.
External Fault
Service personnel can reset the SDM and turn OFF the
D110B009A
warning lamp if the fault is an external fault.
Internal Fault
An internal fault of the SDM or a CRASH RECORDED
fault code cannot be reset.
In the case of an internal fault of the SDM or a CRASH
RECORDED fault code, the SDM must be replaced.
Voltage-Low Fault
The SDM will turn OFF the VOLTAGE LOW fault as
soon as the voltage recovers.
MICROPROCESSOR –
INDEPENDENT LAMP ACTIVATION
If the sensing and diagnostic module (SDM) electrical
connector is not properly attached, the SDM cannot
function and cannot control the warning lamp.
If this fault is present, the warning lamp will operate in-
dependently from the SDM through the use of shorting
bars that are built into the SDM connector.
DAEWOO M-150 BL2