Special Tool; Troubleshooting - Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement

ENGINE COOLING –

SPECIAL TOOL

Tool
A
B
C
D

TROUBLESHOOTING

INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptoms
Radiator fan and condenser fan do not operate. <Vehicles with A/C>
Radiator fan does not operate. <Vehicles without A/C>
Radiator fan and condenser fan do not change speed or stop.
<Vehicles with A/C>
Radiator fan does not change speed or stop. <Vehicles without A/C>
Radiator fan does not operate. <Vehicles with A/C>
Condenser fan does not operate. <Vehicles with A/C>
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection Procedure 1
Radiator fan and condenser fan do not operate.
<Vehicles with A/C>
Radiator fan does not operate. <Vehicles without A/C>
The cause could be a malfunction of the fan controller power supply or earth circuit.
The cause could also be a malfunction of the fan controller or the engine-ECU.
Special Tool/Troubleshooting
Number Name
MB991223 Harness set
A: MB991219 A: Test harness
B: MB991220 B: LED harness
C: MB991221 C: LED
D: MB991222 adapter
D: probe
Use
Measurement of terminal voltage
A: Connector pin contact pressure inspection
B: Power circuit inspection
harness C: Power circuit inspection
D: Commercial tester connection
Inspection procedure
No.
1
2
3
4
Probable cause
Malfunction of fusible link
Malfunction of fan control relay
Malfunction of fan controller
Malfunction of engine-ECU
Malfunction of wiring harness or connector
14-3
14100060038
14100560019
Reference page
14-3
14-6
14-7
14-7