Suzuki Intruder VZ800 User Manual

5-42 FI SYSTEM
“C15” (P0115-H/L) ECT SENSOR CIRCUIT MALFUNCTION
INSPECTION
Step 1 (When indicating C15:)
1) Remove the fuel tank. (6-3)
2) Turn the ignition switch OFF.
3) Check the ECT sensor coupler for loose or poor contacts.
If OK, then measure the ECT sensor voltage at the wire side
coupler.
4) Disconnect the ECT sensor coupler and turn the ignition
switch ON.
5) Measure the voltage between B/Bl wire terminal 1 and
ground.
6) Also, measure the voltage between B/Bl wire terminal 1 and
B/Br wire terminal 2.
 ECT sensor input voltage: 4.5 – 5.5 V
(+ B/Bl – - Ground)
(+ B/Bl – - B/Br)
 09900-25008: Multi-circuit tester set
 Tester knob indication: Voltage ()
Is the voltage OK?
DETECTED CONDITION POSSIBLE CAUSE
C15 Output voltage is not within the following
range.
0.1 Sensor voltage < 4.6 V
• ECT sensor circuit open or short
• ECT sensor malfunction
• ECM malfunction
P0115
H
Sensor voltage is higher than specified
value.
• ECT sensor circuit open or ground circuit open
• ECT sensor circuit shorted to ground
L
Sensor voltage is lower than specified
value.
ECM
E2
ECT
ECT sensor
B/BI
B/Br
YES Go to Step 2.
NO
• Loose or poor contacts on the ECM coupler
(terminal D or I)
• Open or short circuit in the B/Bl wire or B/Br
wire
1
1
SAMPLE

Suzuki Intruder VZ800 Specifications

General

Engine Type	4-stroke, liquid-cooled, DOHC, 45-degree V-twin
Displacement	805 cc
Bore x Stroke	83.0 mm x 74.4 mm
Compression Ratio	9.4:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Transmission	5-speed constant mesh
Final Drive	Shaft drive
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Rear Brake	Drum brake
Seat Height	700 mm (27.6 in)
Front Brake	Disc brake
Rear Tire	170/80-15M/C 77H, tube type
Fuel Tank Capacity	15.5 L (4.1 US gallons)