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.
2002 Mazda Tribute DX 2WD L4-2.0LFACTORY OEM SERVICE PROCEDURE
Generic Electronic Module (GEM)
Inspection and Verification
1. Verify the customer concern by operating the system in question.
2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the concern remains after the inspection, connect the WDS or equivalent Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the WDS or equivalent Tester menu. If the WDS or equivalent Tester does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.
4. If the WDS or equivalent Tester still does not communicate with the vehicle, refer to the WDS or equivalent Tester manual.
5. Carry out the DATA LINK DIAGNOSTICS test. If the WDS or equivalent Tester responds with:
- CKT914, CKT915 or CKT7O ALL ECUS NO RESP/NOT EQUIP, refer to COMMUNICATIONS NETWORK.
- NO RESP/NOT EQUIPPED for generic electronic module (GEM), go to Pinpoint Test 1.
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs). erase the continuous DTCs and carry out self-test diagnostics for the GEM.
6. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, refer to appropriate system to continue diagnostics.
1. Verify the customer concern by operating the system in question.
Visual Inspection Chart:
2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If the concern remains after the inspection, connect the WDS or equivalent Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the WDS or equivalent Tester menu. If the WDS or equivalent Tester does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.
4. If the WDS or equivalent Tester still does not communicate with the vehicle, refer to the WDS or equivalent Tester manual.
5. Carry out the DATA LINK DIAGNOSTICS test. If the WDS or equivalent Tester responds with:
- CKT914, CKT915 or CKT7O ALL ECUS NO RESP/NOT EQUIP, refer to COMMUNICATIONS NETWORK.
- NO RESP/NOT EQUIPPED for generic electronic module (GEM), go to Pinpoint Test 1.
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs). erase the continuous DTCs and carry out self-test diagnostics for the GEM.
6. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
7. If no DTCs related to the concern are retrieved, refer to appropriate system to continue diagnostics.
Factory Service Tools
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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.