Ebd Warning Light (Brake Warning Light) Comes On Steady - Suzuki Swift Sport 2004 Service & Repair Manual

4E-15 ABS:
Step
5 1) Turn ignition switch to OFF and measure resistance
between each terminal of "E03-13", "E03-26" and vehicle
body ground.
Is resistance less than 2
6 Check CAN communication circuit between combination
meter and ABS control module referring to "DTC U1073:
Control Module Communication Bus Off".
Is CAN communication circuit in good condition?

EBD Warning Light (Brake Warning Light) Comes ON Steady

Wiring Diagram
Refer to "ABS Warning Light Does Not Come ON at Ignition Switch ON".
Circuit Description
EBD warning light (brake warning light) is controlled by parking brake switch, brake fluid level switch and ABS
hydraulic unit / control module assembly through lamp driver module in combination meter.
EBD warning light turns ON when parking brake switch is ON and/or brake fluid level is lower than minimum level.
The information of parking brake switch and brake fluid level are transmitted from BCM to lamp driver module in
combination meter through CAN communication line.
Troubleshooting
Step
1 1) Make sure that:
• Parking brake is completely released.
• Brake fluid level is upper than the minimum level.
Are the check results OK?
2 1) Turn ignition switch to ON position.
Does "ABS" warning light come on steady?
3 1) CAN communication circuit between combination meter,
ABS hydraulic unit / control module and BCM referring to
"DTC U1073: Control Module Communication Bus Off".
Is CAN communication circuit in good condition?
Action
Ω
?
Action
Yes
Go to Step 6.
Substitute a known-
good combination meter
and recheck. If ABS
warning light remains
ON, substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
Yes
Go to Step 2.
Perform "ABS Warning
Light Comes ON
Steady" previously
outlined.
Substitute a known-
good combination meter
and recheck. If ABS
warning light remains
ON, substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
No
Ground circuit for ABS
hydraulic unit / control
module open or high
resistance.
Repair or replace.
S7RS0B4504010
No
Release parking brake
completely and/or
replenish brake fluid.
Go to Step 3.
Repair or replace.