Mechanics

REPAIR QUESTION BLOWER STOPPED WORKING

1999 SAAB 9-3

Air Conditioning problem
1999 Saab 9-3 repair Question 4 cyl Two Wheel Drive Automatic 80,000 miles

is it ther fuse that causes my blower to stopped
Avatar
Rob clark
July 27, 2010.



This is for manual heater/ a/c system:
FAN (BLOWER) MOTOR DOES NOT OPERATE 1. Turn ignition on. Operate fan switch at each speed position. See Fig. 1 . If fan motor does not operate at any speed position, go to next step. If fan motor does not operate at speed position "1", go to step 6 . If fan motor does not operate at speed position "2", go to step 8 . If fan motor does not operate at speed position "3", go to step 10 . If fan motor does not operate at speed position "4", go to step 12 . 2. Turn ignition off. Check fuse No. 3 (30-amp) located in main fuse box, positioned at driver's end of instrument panel. If fuse is okay, go to next step. If fuse is blown, replace fuse and recheck fan motor operation. If fuse blows again, perform repairs as necessary. See WIRING DIAGRAMS . If fuse is okay, go to step 14 . 3. Turn ignition off. Disconnect fan motor switch 8-pin connector. Turn ignition on. Connect a test light between ground and fan switch harness connector terminal No. 2 (Red wire). See WIRING DIAGRAMS . If test light illuminates, go to next step. If test light does not illuminate, repair Red wire between fan switch and fuse No. 3. When repairs are complete, go to step 14 . 4. Turn ignition off. Locate fan motor resistor under intake air filter. Disconnect fan motor resistor 5-pin connector. See Fig. 5 . Connect a test light between battery voltage and harness side connector terminal No. 5 (Black wire). If test light comes on, go to next step. If test light does not come on, repair Black wire between fan motor resistor connector and ground connection. When repairs are complete, go to step 14 . 5. Using a heavy gauge, fused (30-amp) jumper wire, apply battery voltage to fan motor resistor terminal No. 3. Using another heavy gauge jumper wire, ground fan motor resistor terminal No. 5. If fan motor does not operate at full speed, check circuits between fan motor resistor and fan motor. If circuits are okay, replace fan motor. If fan motor operates at full speed, replace fan motor switch. When repairs are complete, go to step 14 . 6. Turn ignition off. Locate fan motor resistor under intake air filter. Disconnect fan motor resistor 5-pin connector. See Fig. 5 . Connect a test light between ground and fan motor resistor harness connector terminal No. 1 (Orange wire). Turn ignition on and fan switch to speed position "1". If test light does not come on, go to next step. If test light comes on, replace fan motor resistor. When repairs are complete, go to step 14 . 7. Check Orange wire circuit between fan motor resistor and fan motor speed switch. See WIRING DIAGRAMS . Repair circuit as necessary. If circuit is okay, replace fan motor resistor. When repairs are complete, go to step 14 . 8. Turn ignition off. Locate fan motor resistor under intake air filter. Disconnect fan motor resistor 5-pin connector. Connect a test light between ground and fan motor resistor harness connector terminal No. 2 (Yellow wire). Turn ignition on and fan switch to speed position "2". If test light does not come on, go to next step. If test light comes on, replace fan motor resistor. When repairs are complete, go to step 14 . 9. Check Yellow wire circuit between fan motor and fan motor switch. See WIRING DIAGRAMS . Repair circuit as necessary. If circuit is okay, replace fan motor resistor. When repairs are complete, go to step 14 . 10. Turn ignition off. Locate fan motor resistor under intake air filter. Disconnect fan motor resistor 5-pin connector. See Fig. 5 . Connect a test light between ground and fan motor NOTE: Because of fan motor high current requirements, use heavy gauge jumper wires when testing fan motor operation. resistor harness connector terminal No. 4 (Green wire). Turn ignition on and fan switch to speed position "3". If test light does not come on, go to next step. If test light comes on, replace fan motor resistor. When repairs are complete, go to step 14 . 11. Check Green wire circuit between fan motor resistor and fan motor switch. See WIRING DIAGRAMS . Repair circuit as necessary. If circuit is okay, replace fan motor resistor. When repairs are complete, go to step 14 . 12. Turn ignition off. Locate fan motor resistor under intake air filter. Disconnect fan motor resistor 5-pin connector. Connect a test light between ground and fan motor resistor harness connector terminal No. 3 (White wire). Turn ignition on and fan switch to speed position "4". If test light does not come on, go to next step. If test light comes on, replace fan motor resistor. When repairs are complete, go to step 14 . 13. Check White wire circuit between fan motor resistor and fan switch. See WIRING DIAGRAMS . Repair circuit as necessary. If circuit is okay, replace fan motor resistor. When repairs are complete, go to next step. 14. Using scan tool clear DTCs from all systems. Check A/C system operation. If A/C system operates properly, inspection is complete. If A/C system does not operate properly, go to CONTROL MODULES under TESTING.


http://www.2carpros.com/forum/automotive_pictures/62217_BMR_5.jpg


Merlin2021
Jul 27, 2010.
Firstly do u have a manual control panel [MCC]or a automatic control panel [ACC], if acc type replace your fanspeed control unit located on the passenger side mounted to ac heater box, if mcc type replace your fan speed resistor, located under the crowl cover where fan motor in fitted, note if mcc type, remove control unit & check if fan speed switch section is burnt from the back if so, then replace panel first. GOOD LUCK.

Mnthny4
Jul 30, 2010.
Thanks for the assist.

Merlin2021
Jul 30, 2010.
What is the part number or the name of the female connect/plug that is in the picture. It is labeled Fan Motor Resistor Connector.
I need a new connector and wiring harness that connects to the Blower Resistor but can't find it anywhere for a MCC climate control system on a 1999 Saab 9-3.

When replacing my resistor the wires in the resistor connector came out of the harness. There is a red, black and orange/white wires? What numbers in the connector do these wires go to match up with the numbers in the resistor?

Tiny
Nbmedic
Jul 18, 2012.