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 MANUALSMAZDA1991MX-6 L4-2184CC 2.2L SOHC TURBO F2REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSDATA LINK CONNECTORTESTING AND INSPECTION
1991 Mazda MX-6 L4-2184cc 2.2L SOHC Turbo F2
Data Link Connector: Testing and Inspection
1991 Mazda MX-6 L4-2184cc 2.2L SOHC Turbo F2SECTION Testing and Inspection
Check Connector:
The Test Connector is a green, one pin connector located in the engine compartment. When grounded, the test connector activates the self-diagnostic system and causes the dash mounted "CHECK" light to flash malfunction codes.
Test connector signal can be checked at ECU terminal 1I, ignition switch "ON." With test connector grounded, terminal voltage should be below 1.5V. With connector not grounded, voltage should be above 10.5V. If not as specified, check wiring between test connector and ECU.
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.