Suzuki WagonR+ RB310 Service Manual page 2335

5E1-14 ANTILOCK BRAKE SYSTEM (ABS)
TABLE – B "ABS" WARNING LAMP CIRCUIT CHECK – LAMP COMES "ON"
STEADY
Refer to TABLE – A for System Circuit Diagram and Circuit Description.
INSPECTION
STEP
1 Perform diagnostic trouble code check. Is there any
DTC (including code No.12, NO CODES on SUZUKI
scan tool) exists?
2 Does malfunction DTC (other than code No.12) exist at
step 1?
3 1) Disconnect ABS hydraulic unit/control module
connector.
2) Check for proper connection to ABS hydraulic
unit/control module connector at terminals "E20-14",
"E20-18" and "E20-24".
3) If OK then ignition switch "ON" and measure voltage
at terminal E20-18 of connector.
Is it 10 – 14 V?
4 1) With ABS hydraulic unit/control module connector
disconnected, turn ignition switch ON and light ABS
warning lamp.
2) Connect terminal "E20-14" of disconnected
connector to ground using service wire.
Does ABS warning lamp turn off?
5 1) Measure resistance from connector terminal
"E20-24" to body ground.
Is continuity indicated?
ACTION YES
Go to Step 2.
Go to Step 7 of "ABS
Diagnostic Flow Table"
in this section.
Go to Step 4.
Go to Step 5.
Substitute a known-
good ABS hydraulic
unit/control module
assembly and recheck.
NO
Go to Step 3.
Go to Step 3.
"B/W" circuit open.
"R /BI" circuit open.
If wire and
connection are OK,
replace combination
meter (lamp driver
module).
"B" circuit open.