Suzuki Swift Sport 2004 Service & Repair Manual page 1460

10C-17 Immobilizer Control System:
Terminal
G24-1 Power supply
G24-2 Ground
G24-3 Serial communication line
G24-4 Clock line
Reference Waveform
[A]: The transponder code read successfully at the first try.
[B]: The transponder code read successfully at the second try.
1. Serial communication line
2. Clock line
3. First try
4. Second try
Circuit
About 12.0 V
0.0 V
0.0 V
0.0 V
See the reference waveform.
0.0 V
See the reference waveform.
0.0 V
I4RS0AA30007-01
Normal Voltage
NOTE
When ECM cannot read the transponder code
at the first try, ECM tries to read the
transponder code repeatedly up to 8 times.
The second waveform is the example
showing that ECM read the transponder code
successfully at the second try.
Measurement terminals
Oscilloscope settings
Measurement condition
Condition
Ignition switch at ON position
Ignition switch at OFF position
Ignition switch at ON position
Ignition switch at OFF position
—
Ignition switch at OFF position
—
Ignition switch at OFF position
CH1: G24-3 to G24-2
CH2: G24-4 to G24-2
CH1: 5 V/DIV
CH2: 5 V/DIV
TIME: 20 ms
Right after the ignition
switch is turned ON, the
waveform can be read.