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.
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HOMESERVICE MANUALSMAZDA1991NAVAJO LX, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSTROUBLE SHOOTINGCRUISE CONTROL OPERATES BUT DOES NOT RESUME, ACCELERATE OR COAST
1991 Mazda Navajo LX, Automatic
Cruise Control Operates But Does Not Resume, Accelerate Or Coast
1991 Mazda Navajo LX, AutomaticSECTION Cruise Control Operates But Does Not Resume, Accelerate Or Coast
- Visually inspect system. Check all electrical and vacuum connections. Repair as necessary. If all connections are okay, go to next step.
- Check all switches. See COMPONENT TESTING under DIAGNOSIS & TESTING. Service as necessary. If switches are okay, go to next step.
- Check servo. See SERVO TEST under DIAGNOSIS & TESTING. Tap servo body lightly while testing. Replace servo if defective. If servo is okay, substitute known good amplifier, then go to next step.
- Check all electrical and vacuum connections. If no wiring or vacuum problems found, replace amplifier with known good unit.
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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.