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9-3-6 MAP SENSOR
1 . Connect the connector of MAP sensor (3P) .
2 . Turn the key switch to the ON position .
3 . Measure the voltage between the terminal 3 and
body earth with voltage range of circuit tester .
4 . If the measurement is not within factory
specification, replace the throttle body with ECU or
wiring harness .
5 . Check .the state of the harness and if it is abnormal,
replace it .
6 . Turn the key switch to the OFF position .
7 . Disconnect the connector of MAP sensor (3P) .
8 . Turn the key switch to the ON position .
9 . Measure the resistance between the terminal 1
and ECU terminal 117 earth with resistance range
of circuit tester (harness side) .
10 . Measure the resistance between the terminal 2
and ECU terminal 113 with resistance range of circuit tester (harness side) .
11 . Measure the resistance between the terminal 3 and ECU terminal 116 earth with resistance range of
circuit tester (harness side) .
12 . When the measurements are the table value below the wiring harness is normal .
The MAP sensor is damaged, then replace it .
13 . When the measurements are ot .it of table value below, the wiring harness is damaged, then replace it .
Map sensor
Gray Connector
109
110
109
118
101
Terminal 1 (GND)
Terminal 2 (signal)
Terminal 3 (+)
Sensor connector
(harness side)
Fig .9-7
NOTE ;
• The MAP sensor can not be replaced separately.
• When the injector or MAP sensor is in failure, replace throttle body.
• When replacing the throttle body, the ECU also needs to be replaced.
Harness voltage
Terminal
3
- Body earth
Approx . 5 V
Harness resistance
Terminal
1
-ECU terminal
117
0Ω
Terminal
2
-ECU terminal
113
0Ω
Terrninal
3
-ECU terminal
116
0Ω