Index Nissan Nissan PULSAR N13 Series / ASTRA LD Series (1.6 and 1.8 Liter) 1987 – 1991 year - Service Manual
|
|
Cooling and Heating Systems
73
(1) Renew all hoses that show signs of cracking or perishing. (2) Before finally tightening the hose clips, en- sure that the hoses are pushed fully onto the radiator (3) On automatic transaxle models, ensure that the oil cooler hoses are correctly installed to the 5. COOLING FAN The radiator cooling fan is controlled by the electronic control unit, and on vehicles with air
TO TEST COOLING FAN AND SYSTEM
(1) With the cooling system cold and the air conditioning, if applicable, switched off, switch the
NOTE: Leave the ignition On for all tests
(2) In the above test, if the cooling fan rotates, proceed as follows:
(a) Disconnect the cooling fan relay from the rear of the engine compartment relay box. (b) If the fan stops, backprobe terminal C1 at the electronic control unit using an LED test lamp
View showing the location of the diagnostic link connector. Passengers seat removed for clarity. If a circuit exists, check the wiring harness between the electronic control unit and the relay for
Schematic layout of the cooling fan, coolant temper- ature sensor and related electrical components.
Installed view of the engine compartment relays. KEY
1. To Battery
2. Fusible link COLOUR CODE
3. Fusible link B - Black 4. Fusible link L - Blue 5. Ignition relay Y - Yellow 6. Fuse 20 amp W - White 7. Cooling fan relay O - Orange 8. Cooling fan
9. Coolant temperature
sensor
10. To air conditioning
fan relay
11. To throttle position
sensor
12. Control unit
|