MITSUBISHI MONTERO 2000 Service Repair Manual
Manufacturer: MITSUBISHI, Model Year: 2000, Model line: MONTERO, Model: MITSUBISHI MONTERO 2000Pages: 1839, PDF Size: 29.19 MB
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GDI -Troubleshooting GDI -Troubleshooting 13A-146
OK
Check the harness between the air
flow sensor and the engine-A/T-ECU,
and repair if necessary.
From the previouspage
OK
Measure at engine-A/T-ECU
connector D-120.
DMeasure the voltage at the
engine-A/T-ECU terminal.
DIgnition switch: ON
DVoltage between terminal 55 and
earth
OK:
Altitude 0 m: 3.7 - 4.3 V
Altitude 1200 m:
3.2 - 3.8 VNGCheck the following connector:
D-120NGRepair
OK
Check the trouble symptoms.
OKCheck the following connector:
D-120NG
Repair
NG
Replace the engine-A/T-ECU.
Code No.31 Detonation sensor systemProbable cause
Range of Check
DEngine: Two seconds after theengine has beenstarted
Set Conditions
DChanges in sensor output voltage (detonation sensor peak voltage per 1/3
crankshaft rotation) in 200 consecutivecycles are0.08 V or less.DMalfunction of the detonation sensor
DOpen or short circuit in the detonation sensor
circuit or loose connector contact
DMalfunction of engine-A/T-ECU
Check the following connector:
B-05NG
Repair
OK
Measure at the detonation sensor connector B-05.
DDisconnect the connector and measure at the harness
side.
DThe resistance between terminal 2 and earth
OK:
2Wor lessNGCheck the harness wire between the detonation sensor and
earth, and repair if necessary.
OK
Check the following connector:
D-121NG
Repair
OK
Check the harness wire between the detonation sensor and
the engine-A/T-ECU.NG
Repair
OK
Check the trouble symptoms.OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note for Intermittent
Malfunctions.)
NG
Replace the detonation sensor.
Check the trouble symptoms.
NG
Replace the engine-A/T-ECU.
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