Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 82

Code No. 22 Crank angle sensor system
Range of Check
D Engine is cranking.
Set conditions
D Sensor output voltage does not change for 4 seconds (no pulse signal input.)
Measure at the crank angle sensor connector A-71.
D Connect the connector. (Use the test harness: MD998478.)
D Voltage between 2 and earth (Engine: cranking)
OK: 0.4 - 4.0 V
D Voltage between 2 and earth (Engine: idling)
OK: 1.5 - 2.5 V
NG
Measure at the crank angle sensor connector A-71.
D Disconnect the connector, and measure at the harness side.
1. Voltage between 3 and earth (Ignition switch: ON)
OK: System voltage
2. Voltage between 2 and earth (Ignition switch: ON)
OK: 4.8 - 5.2 V
3. Continuity between 1 and earth
OK: Continuity
OK
NG
Check the following con-
nector: A-71
OK
Check trouble symptom.
NG
Replace the crank angle sensor.
MPI -
Troubleshooting
OK
1. NG
2. NG
3. NG
Repair
Probable cause
D Malfunction of the crank angle sensor
D Improper connector
short-circuited harness wire of the crank angle sensor
D Malfunction of
engine-A/T-ECU <A/T>
Replace the engine-ECU <M/T> or engine-A/T-ECU <A/T>.
Check the harness wire between the crank angle sensor and the
control relay connector, and repair if necessary.
NG
Check the following con-
nector: B-51 <M/T>, B-112
<A/T>
OK
Check trouble symptom.
NG
NG
Check the harness wire
between the engine-ECU
<M/T> or engine-A/T-ECU
<A/T> and the crank angle
sensor connector.
OK
Replace the engine-ECU <M/T> or engine-A/T-ECU <A/T>.
Check the harness wire between the crank angle sensor and the
earth, and repair if necessary.
13D-17
contact, open circuit
the engine-ECU <M/T>
Repair
Repair
or
or