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)COMPONENT TESTSCRUISE CONTROL MODULE
1999 Mazda 626 ES, 2.5 D, Standard
Cruise Control Module
1999 Mazda 626 ES, 2.5 D, StandardSECTION Cruise Control Module
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.
- Locate cruise control module below instrument cluster. Leave cruise control module harness connector attached unless otherwise specified.
- Using DVOM, backprobe specified terminals of cruise control module harness connector while performing appropriate test condition. See CRUISE CONTROL MODULE PIN VOLTAGE table. See Fig 1 .
- If voltage measurements or continuity measurements are not as specified, check related components and wiring. See WIRING DIAGRAMS . If related components and wiring are okay, but system is still not functioning properly, replace cruise control module.
CRUISE CONTROL MODULE PIN VOLTAGE
| Terminal (Signal)/Test Condition | Value | |||||
|---|---|---|---|---|---|---|
| A (Actuator Control) | ||||||
| Ignition On, Main Switch On | Battery Voltage | |||||
| Ignition On, Main Switch Off | Less Than 1 Volt | |||||
| B (Actuator Control) | ||||||
| Ignition On, Main Switch On | Battery Voltage | |||||
| Ignition On, Main Switch Off | Less Than 1 Volt | |||||
| C (Actuator Control) | ||||||
| Ignition On, Main Switch On | Battery Voltage | |||||
| Ignition On, Main Switch Off | Less Than 1 Volt | |||||
| D (Indicator Light Output) | ||||||
| Ignition On | Battery Voltage | |||||
| Ignition LOCK Or ACC | Less Than 1 Volt | |||||
| E (IG1) | ||||||
| Ignition On, Main Switch On | Battery Voltage | |||||
| Ignition On, Main Switch Off | Less Than 1 Volt | |||||
| G (PCM O/D Off) | ||||||
| Ignition On | Battery Voltage | |||||
| Ignition LOCK Or ACC | Less Than 1 Volt | |||||
| H (Cruise Brake Switch) | ||||||
| Ignition On, Main Switch On | Battery Voltage | |||||
| Ignition On, Main Switch Off | Less Than 1 Volt | |||||
| I (Data Link Connector) | (1) | |||||
| J (Transmission Range Switch) | ||||||
| Ign. On, Main Sw. On, Not In Park Or Neutral | Battery Voltage | |||||
| Ign. On, Main Sw. Off, In Park Or Neutral | Less Than 1 Volt | |||||
| K (Brake Cruise Switch | ||||||
| Brake Pedal Depressed | Battery Voltage | |||||
| Brake Pedal Released | Less Than 1 Volt | |||||
| L (Cruise Control Switch Position) | ||||||
| Ign. On, Main Sw. On, SET/COAST Sw. Depressed | 2.5 Volts | |||||
| Ign. On, Main Sw. On, RESUME/ACCEL Sw. Depressed | 1.2 Volts | |||||
| Ign. On, Main Sw. On, CANCEL Sw. Depressed | 3.5 Volts | |||||
| Ign On, Cruise Main Held On | 5.4 Volts | |||||
| M (Brakelight Switch) | ||||||
| Brake Pedal Released | Battery Voltage | |||||
| Brake Pedal Depressed | Less Than 1 Volt | |||||
| N (Vehicle Speed Sensor) | ||||||
| Ign. On, Cruise Control Main Switch Held On, Front Tires Rotating | Alternating 0-5 Volts | |||||
| O (Cruise Control Main Switch Input) | ||||||
| Ign. On, Main Sw. Off, | Battery Voltage | |||||
| Ign. On, Main Sw. On | Less Than 1 Volt | |||||
| P (Ground) At All Times | (2) Continuity To Ground | |||||
|
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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.