Check Radiator

Fault symptom
Lamp does not light, see point 1.

The lamp does not go out at the correct coolant level, see point 2.

The lamp does not light when the coolant level is low, see point 3

Action
1 When the ignition is switched on, CHECK RADIATOR should light, stay lit for 4 seconds and then go out.
If CHECK RADIATOR lights but other Electronic Display Unit (EDU) functions are not working, proceed to "Action Before Changing A Control Module".
2 Connect the Intelligent Saab Tester (ISAT) and read "COOLANT LEV. SENS".
If the display response is OFF 12 V, proceed to "Action Before Changing A Control Module".
If the display response is ON 0 V:
Part connector H2-1 to the sensor in the expansion tank. If the lamp goes out, change the sensor.
If the lamp does not go out, check the lead between pin 17 on the control module and pin 1 in connector H2-1 for short circuit to ground.






3 Connect the ISAT and read "COOLANT LEV. SENS".
Display response OFF 12 V:
Part connector H2-1 and bridge between pins 1 and 2. If the lamp lights and the ISAT display response shows ON 0 V, change the sensor.
If the lamp does not light, check the cable assembly between pin 2 in connector H2-1 and pin 17 in the control module and between pin 2 and ground for open circuit.
If the fault remains, proceed to "Action Before Changing A Control Module".