Suzuki RMX450Z Service Manual

1A-27 Engine General Information and Diagnosis:
DTC “14” (P0120-H/L): TP Sensor Circuit Malfunction
BA02J21104011
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Troubleshooting
CAUTION
!
When using the multi circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle-point tester probe to prevent the terminal damage or terminal bend.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures” (Page 1A-12).
Detected condition Possible cause
14
Output voltage is not within the following
range.
Difference between actual throttle opening
and opening calculated by ECM is larger
than specified value.
0.5 V ≤ Sensor voltage < 4.8 V
• TP sensor maladjusted.
• TP sensor circuit open or short.
• TP sensor malfunction.
• ECM malfunction.
P0120
H
Sensor voltage is higher than specified
value.
• TP sensor circuit is shorted to VCC or ground circuit is
open.
L
Sensor voltage is lower than specified
value.
• TP sensor circuit is open or shorted to ground or VCC
circuit open.
ECM
R/Bl
B/Br
VCC
TP
E2
TP sensor
Y
Bl
Y
B
13
5
24
IA02J1110014-01
I933H1110012-02

Suzuki RMX450Z Specifications

General

Displacement	449cc
Compression Ratio	12.5:1
Fuel System	Fuel injection
Starter	Electric
Transmission	5-speed constant mesh
Final Drive	Chain
Front Suspension	Inverted telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Engine Type	4-stroke, liquid-cooled, DOHC
Bore x Stroke	96.0 mm x 62.1 mm
Front Brakes	Single disc
Rear Brakes	Single disc
Front Tire	80/100-21
Fuel Tank Capacity	6.2 L (1.6 US gal)
Overall Length	2185 mm (86.0 in)
Ground Clearance	325mm
Seat Height	955mm
Wheelbase	1, 480mm