flat tire DAEWOO MATIZ 2003 Service User Guide

FRONT DISC BRAKES 4D–5
DAEWOO M-150 BL2
LINING INSPECTION
1. Raise and suitably support the vehicle.
2. Remove the front wheels. Refer to Section 2E, Tires
and Wheels.
3. Visually check the linings for minimum thickness and
wear.
4. Measure the thickness.
Important: The minimum thickness of the shoe and lin-
ing together is 8 mm (0.31 in.).
D107B301
5. Install the shoe and linings in axle sets only.
6. Install the front wheels. Refer to Section 2E, Tires
and Wheels.
7. Lower the vehicle.
ROTOR INSPECTION
Thickness variation can be checked by measuring the
thickness of the rotor at four or more points around the
circumference of the rotor. All measurements must be
made at the same distance in from the edge of the rotor.
If the thickness of the rotor is below 10 mm (0.40 in.),
replace the brake rotor.
During manufacturing, the brake rotor and the toler-
ances of the braking surface regarding flatness and lat-
eral runout are held very close. The maintenance of
close tolerances on the shape of the braking surfaces is
necessary to prevent brake roughness.
D107B302
In addition to these tolerances, the surface finish must
be held to a specified range. The control of the braking
surface finish is necessary to avoid pulls and erratic per-
formance and to extend lining life.
Using a commercially-available dial indicator, check lat-
eral runout as follows:
Notice: Permissible lateral runout is a maximum 0.05 mm
(0.002 in.). If lateral runout exceeds the specification,
ensure there is no dirt between the rotor and the hub and
that contact surfaces are smooth and free from burrs.
1. Position the transaxle in NEUTRAL.
2. Remove the rotor. Refer to “Rotor” in this section.
3. Fasten a dial indicator to the strut.
4. Set the gauge probe tip to approximately 10 mm
(0.4 in.) from the outer edge of the brake rotor, per-
pendicular to the disc and under slight preload.
5. Remove the dial indicator.
Important: Since accurate control of the rotor toler-
ances is necessary for proper performance of the disc
brakes, refinishing of the rotor should be done only with
precision equipment.
6. Refinish the rotor, if required, with precision equip-
ment. Discard the rotor if it fails to meet the above
specifications after refinishing.
7. Install the rotor. Refer to “Rotor” in this section.
D107B303

8B–8 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
D110B009A
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:

Current faults and the fault code appears “Axx” on the
scan tool display.

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:

Indicates a fault as soon as it occurs.

Stays ON, even if a fault is no longer active.A scan tool connected to the data link connector (DLC):

Reveals the fault codes.

Receives serial data transmission through the termi-
nal J (13) of the DLC.

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:

Clears the entire fault memory.

Turns OFF the warning lamp.

Resets for fault detection.
External Fault
Service personnel can reset the SDM and turn OFF the
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.