Keyless Entry Receiver And Its Circuit Inspection - Suzuki SX4 Service Manual

Keyless Entry Receiver and Its Circuit Inspection

1) Check that the voltage between the following terminals and body ground are specifications under each conditions.
If check result is not as specified, check applicable circuit for open or short. If circuit is normal, proceed to next
step.
1. Keyless entry receiver
Terminal
1 Power source
Lock/Unlock output
3
signal circuit
4
Oscilloscope setting
CH1: 2V/DIV
CH2: 2V/DIV
TIME: 200 ms/DIV
1) Recheck keyless entry receiver as follows.
a) Substitute a known-good keyless entry receiver.
b) Record key code referring to "Programming Transmitter Code for Keyless Entry System (Other than Keyless
Start Model)".
c) Recheck keyless entry receiver system.
1
2. Keyless entry receiver connector (view from harness side)
Circuit Specification
Figure [A]
0 – 1 V
Figure [A]
0 – 1 V
Ground 0 – 1 V
1. Lock/Unlock out put signal
2. Power source
Security and Locks:
4 3 2 1
2
V
I7RW0A960004-02
Condition
Push "Lock" or "Unlock" button on transmitter.
Except the above-mentioned condition.
Push "Lock" or "Unlock" button on transmitter.
Except the above-mentioned condition.
—
I4RS0A960024-01
9F-17
S7RW0A9606018