Mitsubishi Grandis. Manual - part 721
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI)
13A-135
Code No. P0222: Throttle Position Sensor (Sub) Circuit Low Input
OPERATION
• A power voltage of 5 V is applied to the
electronic-controlled throttle valve (terminal No.
5) from the engine-ECU <M/T> or
engine-A/T-ECU <A/T> (terminal No. 106).
• The power voltage is earthed to the engine-ECU
<M/T> or engine-A/T-ECU <A/T> (terminal No.
105) from the electronic-controlled throttle valve
(terminal No. 3).
• The sensor signal is inputted to the engine-ECU
<M/T> or engine-A/T-ECU <A/T> (terminal No.
113) from the electronic-controlled throttle valve
output terminal (terminal No. 6).
FUNCTION
• The throttle position sensor converts the throttle
valve position into voltage and inputs it into the
engine-ECU <M/T> or engine-A/T-ECU <A/T>.
• The engine-ECU <M/T> or engine-A/T-ECU
<A/T> controls the throttle valve position.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in ON position.
Judgment Criterion
• Throttle position sensor (sub) output voltage is
2.25 V or less for 0.5 second.
PROBABLE CAUSE
• Failed throttle position sensor (sub)
AK305560
6
1 2 3 4 5
9192
939495
96979899
100
105
113114
115116117
118119120
106
107108109
110111112
101102103
104
(sub)
Hall IC
AB
5 V
106
5
B
C-115
W
B
R
Engine-ECU <M/T> or
engine-A/T-ECU <A/T>
113
105
7
6
3
Throttle position sensor (sub) circuit
B-06
C-113
(MU803805)
Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Gray
R: Red P: Pink V: Violet
Electronic-controlled
throttle valve