Electronic Stability Program: 4F-1
Brakes
Electronic Stability Program
Precautions
Precautions in Diagnosing Troubles
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To ensure that the trouble diagnosis is done accurately
and smoothly, observe the following and follow
“Electronic Stability Program System Check”.
• Diagnostic information stored in ESP® control module
memory can be cleared as well as checked by using
SUZUKI scan tool. Before using scan tool, read its
Operator’s (Instruction) Manual carefully to have good
understanding as to what functions are available and
how to use it.
• If the vehicles was operated in any of the following
ways, ESP® warning lamp may light momentarily but
this does not indicate anything abnormal in ESP®.
– The vehicle was driven with parking brake pulled.
– The vehicle was driven with brake dragging.
– The vehicle was stuck in mud, sand, etc.
– Wheel spin occurred while driving.
– Wheel(s) was rotated while the vehicle was jacked
up.
• Be sure to use the trouble diagnosis procedure as
described in “Electronic Stability Program System
Check”. Failure to follow it may result in incorrect
diagnosis. (Some other diagnosis trouble code may
be stored by mistake in the memory of ESP® control
module during inspection.)
• When disconnecting ESP® control module connector
(1), pull down the lock lever (2) of connector.
When connecting, set the connector on ESP®
hydraulic unit / control module assembly and pull up
the lock lever (2) until it locks.
• Communication of ECM, BCM, ESP® control module,
keyless start control module (if equipped), steering
angle sensor and combination meter is established by
CAN (Controller Area Network).
Therefore, be sure to read “Precautions for Installing
Mobile Communication Equipment in Section 00”
before inspection and handling CAN communication
line.
Precautions in On-Vehicle Service
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When connector is connected to ESP® hydraulic unit /
control module assembly, do not disconnect connectors
of sensors with ignition switch ON. Otherwise, DTC will
be set in ESP® control module.
Precautions in Hydraulic Unit Operation Check
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ESP® hydraulic unit / control module assembly function
is checked by correct wheel lock / release condition
when brake pressure is pressurized / depressurized
using SUZUKI scan tool. The hydraulic unit operation
check referring to “ESP® Hydraulic Unit Operation
Check” should be performed to confirm the correct brake
pipe connection in the following cases.
• ESP® hydraulic unit / control module assembly was
replaced.
• Brake pipe and/or hose were replaced.
Precautions in Sensor Calibration
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ESP® control module stores calibration points data of yaw rate / G sensor assembly and master cylinder pressure
sensor. Steering angle sensor stores calibration point data of itself.
TCS and stability control system use these sets of data.
When the following operation is done, sensor calibration should be performed since the original calibration points are
deleted.
[A]: Disconnect [C]: Pull down to disconnect
[B]: Connect [D]: Pull up to connect
2
1
C
D
[A]
[B]
I4RH01450001-01
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