Suzuki Liana RH413, Service Manual

Page: 164 / 1302

1A-113 Engine General Information and Diagnosis:
1. Reference waveform No.1
Heated oxygen sensor-2 heater signal at engine idling
2. Reference waveform No.2
Heated oxygen sensor-1 signal at engine idling
G03-10 Electric load signal (–)
4 – 14 V
Ignition switch turned ON and blower
motor switch turned to 1st speed position
or OFF
0 – 2 V
Ignition switch turned ON and blower
motor switch turned to 2nd speed position
or more.
G03-11 Power source for back-up 10 – 14 V Anytime
G03-12 Torque control input signal (A/T)
10 – 14 V Ignition switch ON
0 – 1 V
↑↓
4 – 6 V
Vehicle running at after warming up.
(Signal from TCM is 100 Hz low duty
pulse. Pulse generated time is shifting time
when transmission gear is shifted by
TCM.)
G03-13
Data link connector (K line of ISO
9141)
10 – 14 V Ignition switch ON
G03-14
Throttle opening signal for TCM
(A/T)
0 – 0.6 V
↑↓
8 – 12 V
Ignition switch turned ON.
(Output signal is 128 Hz active low duty
pulse. Duty ratio varies as throttle valve is
opened gradually.)
Throttle opening 0% = 0.78 ms ON duty
Throttle opening 100% = 6.24 ms ON duty
G03-15
Fuel level sensor (gauge)
(vehicle with heated oxygen
sensor 2) 0 – 2 V Ignition ON and fuel tank fully filled
4.5 – 7.5 V Ignition ON and fuel tank emptied
G03-16 Blank — —
G03-17
Serial data for TCM (A/T)
0 – 1 V
↑↓
10 – 14 V
Ignition switch ON
(Output signal is active low duty pulse.
Pulse is generated from ECM and TCM
each other.)
Monitor output (without
immobilizer)
10 – 14 V Ignition switch ON
Terminal No. Circuit Normal Voltage Condition
Measurement
terminal CH1: G04-13 to C41-10
CH2: G04-4 to C41-1
Oscilloscope setting CH1: 500 mV/DIV, CH2: 10 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Drive vehicle at 60 km/h (37 mil/
h) for 10 min.
• Engine at specified idle speed
1. Heated oxygen sensor-2 signal
2. Heated oxygen sensor-2 heater signal
I3RH0A110027-01
Measurement
terminal CH1: C41-13 to C41-10
CH2: C41-7 to C41-1
Oscilloscope setting CH1: 500 mV/DIV, CH2: 20 V/DIV
TIME: 1 s/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Heated oxygen sensor-1 signal
2. Heated oxygen sensor-1 heater signal
I3RH0A110028-01