Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSAAB1992900 L4-2118CC 2.1L DOHCREPAIR AND DIAGNOSISCRUISE CONTROLTESTING AND INSPECTION
1992 Saab 900 L4-2118cc 2.1L DOHC
Cruise Control: Testing and Inspection
1992 Saab 900 L4-2118cc 2.1L DOHCSECTION Testing and Inspection
1. With ignition switch and selector in On position, check the following:
a. On models with manual transmission, fuse No. 8 is satisfactory and power is supplied to fuse.
b. On all models, fuse No. 13 is satisfactory and power is supplied to fuse.
c. On models with automatic transmission, fuse 76 is satisfactory and power is supplied to fuse.
d. Power is supplied to terminal 4 of selector and terminal 9 of the control unit.
e. That there is voltage at terminal 1 of speed transmitter.
2. With ignition switch On and selector in Set position, check voltage at terminal 2 of selector and at terminal 3 of control unit.
3. With ignition switch On and selector in Resume position, check voltage at terminals 1 and 3 of selector and at terminals 4 and 9 of control unit.
4. Test vacuum pump by grounding pin 3 and applying voltage to pin 2.
5. Test vacuum valve by grounding pin 3 and applying voltage to pin 1.
a. On models with manual transmission, fuse No. 8 is satisfactory and power is supplied to fuse.
b. On all models, fuse No. 13 is satisfactory and power is supplied to fuse.
c. On models with automatic transmission, fuse 76 is satisfactory and power is supplied to fuse.
d. Power is supplied to terminal 4 of selector and terminal 9 of the control unit.
e. That there is voltage at terminal 1 of speed transmitter.
2. With ignition switch On and selector in Set position, check voltage at terminal 2 of selector and at terminal 3 of control unit.
3. With ignition switch On and selector in Resume position, check voltage at terminals 1 and 3 of selector and at terminals 4 and 9 of control unit.
4. Test vacuum pump by grounding pin 3 and applying voltage to pin 2.
5. Test vacuum valve by grounding pin 3 and applying voltage to pin 1.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.