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)DIAGNOSTIC TESTSDTC 35: TRANSMISSION RANGE (TR) SWITCH CIRCUIT
1999 Mazda 626 ES, 2.5 D, Standard
DTC 35: Transmission Range (Tr) Switch Circuit
1999 Mazda 626 ES, 2.5 D, StandardSECTION DTC 35: Transmission Range (Tr) Switch Circuit
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.
- Access cruise control module, behind right kick panel. Disconnect cruise control module connector. Turn ignition switch to ON position. Shift transmission to drive or reverse. Using DVOM measure voltage at cruise control module terminal "J" (Blue/Yellow wire). If voltage exists, repair wiring between cruise control module and TR switch See WIRING DIAGRAMS . If voltage does not exist, go to next step.
- Disconnect TR switch connector. Using DVOM, measure voltage at TR switch connector terminal "F" (Blue/Yellow wire). See Figure . If voltage is present, repair wiring harness. See WIRING DIAGRAMS . If voltage is not present, go to next step.
- Test TR switch. See TRANSMISSION RANGE (TR) SWITCH under COMPONENT TESTS. If TR switch is okay, proceed to next step. If switch is defective, replace or adjust as necessary.
- Inspect starter motor. See STARTERS article. If starter is okay, replace cruise control module. See CRUISE ACTUATOR under REMOVAL & INSTALLATION. If starter is defective, repair or replace as necessary.
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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.