Suzuki Wagon R Plus RB310, Service Manual

Page: 217 / 846

6-2-42 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
E21-9 GRN/WHT
Electric load signal for
stop lamp
0 – 1 V
Ignition switch turned ON, stop lamp not
lighted up
10 – 14 V
Ignition switch turned ON, stop lamp
lighted up
E21-10 – – – –
E21-11 WHT/BLK
Serial communication
line of data link con-
nector 12 V
10 – 14 V Ignition switch turned ON
E21-12 BRN/YEL
Engine revolution sig-
nal output for tachome-
ter
0 – 0.8 V
Ignition switch turned ON with engine
stop
*0 – 1 V
↑↓
8 – 14 V
(Reference wave-
form No.22 and
No.23)
While engine running.
(Output signal is pulse. Pulse frequency
varies depending on engine speed.)
(2 pulses are generated par 1crankshaft
revolution.)
(3000 r/min = 100 Hz)
E21-13 PNK/BLU
Electric load signal for
heater blower motor
10 – 14 V
Ignition switch turned ON, blower fan
selector selected at OFF
0 – 1 V
Ignition switch turned ON, blower fan
selector selected at 2nd speed position
or more
E21-14 YEL/RED
Fuel level sensor sig-
nal
0 – 6 V
Ignition switch turned ON
Voltage depends on fuel level
E21-15 GRN/RED
A/C evaporator outlet
air temp. sensor signal
(if equipped)
3.3 – 3.8 V
Ignition switch turned ON at A/C evapo-
rator inlet air temperature 0°C (32°F)
2.5 – 2.9 V
Ignition switch turned ON at A/C evapo-
rator inlet air temperature 15°C (59°F)
1.9 – 2.3 V
Ignition switch turned ON at A/C evapo-
rator inlet air temperature 25°C (77°F)
E21-16 WHT/BLU
Power source for ECM
internal memory
10 – 14 V
Ignition switch turned ON and turned
OFF
E21-17 – – – –
E21-18 – – – –
E21-19 – – – –
E21-20 – – – –
E21-21 – – – –
E21-22 – – – –
E21-23 – – – –
E21-24 – – – –
E21-25 – – – –
E21-26 – – – –
E21-27 – – – –
E21-28 BLK/WHT Ignition switch signal
0 – 1 V Ignition switch turned OFF
10 – 14 V Ignition switch turned ON
E21-29 – – – –
TERMINAL
NUMBER
WIRE
COLOR
CIRCUIT
NORMAL
VOLTAGE
CONDITION