Precautions In Diagnosing Troubles; Precautions In On-Vehicle Service; Precautions In Hydraulic Unit Operation Check - Suzuki GRAND VITARA 2005 Service Manual

4F-1 Electronic Stability Program:
Electronic Stability Program

Precautions in Diagnosing Troubles

To ensure that the trouble diagnosis is done accurately
and smoothly, observe the following and follow
"Electronic Stability Program 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 read "Precautions for Electrical Circuit
Service: in Section 00 in related manual" before
inspection and observe what is written there.
• Be sure to use the trouble diagnosis procedure as
described in "Electronic Stability Program 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 up lock lever (2) of connector.
When connecting, set the connector on ESP®
hydraulic unit / control module assembly and pull
down the lock lever (2) until it locks.
[A]
C
[A]: Disconnect
[B]: Connect
Precautions
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[B]
2
D
1
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C: Pull up to disconnect
D: Pull down to connect
• Communication of ECM, BCM, ESP® (ABS) control
module (if equipped), 4WD control module (if
equipped), immobilizer control module (ICM) (if
equipped), combination meter and steering angle
sensor (if equipped) is established by CAN (Controller
Area Network).
Therefore, be sure to read "Precaution for CAN
Communication System: in Section 00 in related
manual" before inspection and handling CAN
communication line.

Precautions in On-Vehicle Service

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

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 "Hydraulic Unit Operation Check: in
Section 4E" 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.
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