Suzuki GRAND VITARA JB416 Service Manual page 287

Step
4 1) Turn ignition switch to OFF position.
2) Check for proper connection to ESP® control module
connector at terminals "E53-1" and "E53-32".
3) If OK then turn ignition switch to ON position and
measure voltage between each terminal of "E53-1",
"E53-32" and vehicle body ground.
Are they 10 – 14 V?
5 1) Turn ignition switch to OFF position.
2) Check for proper connection to ESP® control module
connector at terminals "E53-16" and "E53-47".
3) If OK, measure resistance between each terminal of
"E53-16", "E53-47" and vehicle body ground.
Are resistance less than 2
6 1) Check if communication is possible by trying
communication with other controller (ECM, TCM, BCM,
4WD control module or SDM).
Is it possible to communicate with other controller?
7 1) Turn ignition switch to ON position.
2) Measure voltage between terminal B of data link
connector and vehicle body ground.
Is voltage 10 – 12 V?
8 1) Turn ignition switch to OFF position.
2) Measure resistance between the following terminals;
• Terminal G of data link connector and vehicle body
ground.
• Terminal G1 of data link connector and vehicle body
ground.
Is each resistance 1
9 1) Turn ignition switch to OFF position.
2) Check proper connection at "E53-33" ("PPL/WHT" wire)
terminal for serial data circuit.
3) If OK, then check resistance between "E53-33" ("PPL/
WHT" wire) terminal and "PPL/WHT" wire terminal (2) for
serial data circuit in DLC (1).
Ω
Is resistance 1 or less?
"E53-33"
Action
Ω
?
Ω
or less?
1
2
Electronic Stability Program:
Yes
Go to Step 5.
Go to Step 6.
Go to Step 7.
Go to step 8.
Go to step 9.
Substitute a known-
good ESP® hydraulic
unit / control module
and recheck.
I6JB01460015-01
4F-24
No
"WHT/RED" and/or
"WHT/BLU" wire circuit
open.
Ground circuit for ESP®
control module open or
high resistance.
Repair open in common
section of serial data
circuit ("PPL/WHT" wire
circuit) used by all
controllers or short to
ground or power circuit
which has occurred
somewhere in serial
data circuit ("PPL/WHT"
wire circuit).
Terminal B circuit open
or shorted to ground.
Terminal G and/or G1
circuit open or high
resistance.
Repair high resistance
or open in "PPL/WHT"
wire circuit for anti lock
brake system.