Brake Interlock System Construction; A/T Diagnosis General Description; On-Board Diagnostic System Description - Suzuki Swift Sport 2004 Service & Repair Manual

5A-8 Automatic Transmission/Transaxle:

Brake Interlock System Construction

Shift Lock Solenoid Control
This system consists of shift lock solenoid control
system and interlock cable control system.
The shift lock solenoid control system is so designed
that the select lever can not be shifted from "P" range
position unless ignition switch is turned to "ON" or "ACC"
position and the brake pedal is depressed.
And interlock cable control system is so designed that
select lever cannot be shifted from "P" range position
unless ignition switch is turned to "ACC" or "ON"
position. Also, ignition key cannot be pulled out of key
slot unless select lever is in "P" range.
Shift Lock Solenoid Manual Release
When push down shift lock solenoid valve release button
(1), select lever can be moved from "P" range position to
another range even without depressing the brake pedal.
(To shift select lever from "P" range to any other position,
turn ignition switch to ACC or ON position.)
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A/T Diagnosis General Description

This vehicle is equipped with an electronic transaxle
control system, which controls the automatic shift up and
shift down timing, TCC operation, etc. suitably to vehicle
driving conditions.
TCM has an On-Board Diagnosis System which detects
a malfunction in this system.
When diagnosing a trouble in transaxle including this
system, be sure to have full understanding of the outline
of "On-Board Diagnostic System Description" and each
item in "Precautions in Diagnosing Trouble" and execute
diagnosis according to "A/T System Check" to obtain
correct result smoothly.

On-Board Diagnostic System Description

S7RS0B5101004
For automatic transaxle control system, TCM has the
following functions. Refer to "Inspection of TCM and Its
Circuits".
• When ignition switch is turned ON with no malfunction
in A/T control system is detected, transmission
warning light (1) lights for about 2 seconds after
ignition switch is turned ON and then goes OFF for
bulb check.
• When TCM detects a malfunction in A/T control
system, it indicates transmission warning light (1) and
stores malfunction DTC in its memory.
• It is possible to communicate with TCM through data
link connector (DLC) (3) by using SUZUKI scan tool
(2). Diagnostic information can be checked and
erased by using SUZUKI scan tool.
• For information about the following items, refer to "On-
Board Diagnostic System Description in Section 1A"
– Warm up cycle
– Driving cycle
– 2 Driving cycle detection logic
– Pending DTC
– Freeze frame data
I6RS0C510001-01
S7RS0B5101005
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