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 MANUALSMAZDA1999626 ES, 2.5 D, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 77 (CRUISE CONTROL SYSTEM)SELF-DIAGNOSTIC SYSTEMOPERATION MODEUSING NEW GENERATION STAR (NGS) TESTER
1999 Mazda 626 ES, 2.5 D, Standard
Using New Generation Star (NGS) Tester
1999 Mazda 626 ES, 2.5 D, StandardSECTION Using New Generation Star (NGS) Tester
WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
- Connect New Generation Star (NGS) Tester (49-T088-0A0) and Adapter (49-T088-004) according to manufacturer's instructions. Turn ignition switch to ON position. Ensure cruise control main switch is off. Press RESUME/ACCEL switch, then press cruise control main switch to activate system inspection. Cruise indicator light should illuminate.
- Set tester adapter switch to AUX 2. Using NGS tester, select VEHICLE & ENGINE SELECTION and press TRIGGER. Select DIAGNOSTIC DATA LINK and press TRIGGER. Select CCM - CRUISE CONTROL MODULE and press TRIGGER. Select DIAGNOSTIC TEST MODE and press TRIGGER. Select CRUISE CONTROL INPUT SW SELF TEST and press TRIGGER. Press START button.
- Press SET/COAST switch. If SET/COAST SW-PRESS is displayed on NGS tester, go to next step. If SET/COAST SW-PRESS is not displayed on NGS tester, check cruise control switch circuit. See DTC 21: CRUISE CONTROL SWITCH CIRCUIT (SET/COAST) under DIAGNOSTIC TESTS.
- Press RESUME/ACCEL switch. If RESUME/ACCEL SW-PRESS is displayed on NGS tester, go to next step. If RESUME/ACCEL SW-PRESS is not displayed on NGS tester, check cruise control switch circuit. See DTC 22: CRUISE CONTROL SWITCH CIRCUIT (RESUME/ACCEL) under DIAGNOSTIC TESTS.
- Depress brake pedal. If BRAKE PEDAL-DEPRESS is displayed on NGS tester, go to next step. If BRAKE PEDAL-DEPRESS is not displayed on NGS tester, check brake switch circuit. See DTC 31: BRAKE SWITCH CIRCUIT under DIAGNOSTIC TESTS.
- Place gear selector in Neutral. If N RANGE NEUTRAL POSITION-SHIFT is displayed on NGS tester, go to step 7 . If N RANGE NEUTRAL POSITION-SHIFT is not displayed on NGS tester, check transmission range switch circuit. See DTC 35: TRANSMISSION RANGE (TR) SWITCH CIRCUIT under DIAGNOSTIC TESTS.
- Drive vehicle at a speed greater than 25 MPH. If VEHICLE SPEED-ABOVE 40 KM/H (25 MPH) is displayed on NGS tester, operation mode has passed. Perform condition detection mode. See CONDITION DETECTION MODE . If VEHICLE SPEED-ABOVE 40 KM/H (25 MPH) is not displayed on NGS tester, check vehicle speed sensor circuit. See DTC 37: VEHICLE SPEED SENSOR CIRCUIT under DIAGNOSTIC TESTS.
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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.