Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 495

13B-14
Code No. 22 Crank angle sensor system
Range of Check
Engine is cranking.
Set conditions
Sensor output voltage does not change for 4 seconds (no pulse signal input.)
Measure at the distributor connector A-72.
Connect the connector. (Use the test harness: MB991348.)
Voltage between 5 and earth (Engine: cranking)
OK: 0.4 – 4.0 V
Voltage between 5 and earth (Engine: idling)
OK: 1.5 – 2.5 V
NG
Measure at the distributor connector A-72.
Disconnect the connector, and measure at the harness side.
1. Voltage between 6 and earth (Ignition switch: ON)
OK: System voltage
2. Voltage between 5 and earth (Ignition switch: ON)
OK: 4.8 – 5.2 V
3. Continuity between 7 and earth
OK: Continuity
OK
NG
Check the following con-
nector: A-72
OK
Check trouble symptom.
NG
Replace the distributor.
Code No. 24 Vehicles speed sensor system
Range of check
Ignition switch: ON
Excluding 60 seconds after the ignition switch is turned to ON or immediately
after the engine starts.
Idle position switch: OFF
Engine speed is 3,000 r/min or more.
Driving under high engine load conditions.
Set conditions
Sensor output voltage does not change for 4 seconds (no pulse signal input).
Does the speedometer operate normally?
Measure at the engine-ECU connector B-31.
Disconnect the connector, and measure at the harness side.
Voltage between 86 and earth (Ignition switch: ON)
OK: When the vehicle is pushed, 0 V and 5 V are repeated
alternately.
Check the following connector: B-31
Check trouble symptom.
MPI – MPI –
Repair
Yes
OK
OK
Troubleshooting Troubleshooting
Probable cause
Malfunction of the crank angle sensor
Improper
short-circuited harness wire of the crank angle sensor
circuit
Malfunction of the engine-ECU
OK
Replace the engine-ECU.
1. NG
Check the harness wire between the crank angle sensor and
the control relay connector, and repair if necessary.
2. NG
Check the following con-
nector: B-31
3. NG OK
Check trouble symptom.
NG
Check the harness wire
between the engine-ECU
and the crank angle sensor
connector.
OK
Replace the engine-ECU.
Check the harness wire between the crank angle sensor and
the earth, and repair if necessary.
Probable cause
Malfunction of the vehicle speed sensor
Improper
short-circuited harness wire of the vehicle speed
sensor circuit
Malfunction of the engine-ECU
No
Check the vehicle speed sensor circuit.
(Refer to GROUP 54 – Combination Meter.)
NG
Check the harness wire between the engine-ECU and the vehicle
speed sensor connector, and repair if necessary.
NG
Repair
NG
Replace the engine-ECU.
connector contact, open circuit
NG
Repair
NG
Repair
connector contact, open circuit
or
or