Contents: Examination ⇓ Cruise control switches ⇓
The cruise control system maintains the vehicle's set speed using an electronic control unit, a speed sensor and a drive located in the engine compartment. The cruise control system consists of switches, a speed sensor, a brake light switch, a clutch pedal switch and connecting wires.
Identifying terminals and checking continuity (between terminals 2 and 3) cruise control switch - Ford Probe models
| Switch position | Resistance (Ohm) |
| On | 10000 |
| Off | Less than 5 |
| Set/Acc | 680 |
| Coast | 120 |
| Resume | 2200 |
Identifying the Cruise Control Main Switch Terminals – Mazda Models
When switched on, there should be conductivity between terminals C and D.
Mazda Cruise Control System Error Codes
| Code | Possible cause |
| 1 | Connecting wires, system drive, brake light switch |
| 5 | Fuse |
| 7 | Brake light switch |
| 11 | Cruise control switch |
| 15 | Electronic control unit |
Examination
1. Check the cruise control fuse.
2. Check the operation of the brake light switch.
3. Check the operation of the switch on the clutch pedal.
4. Inspect the vacuum hoses and check the tension of the system cable.
5. Check the speed sensor.
Cruise control switches
Check and replace
Ford Probe models
1. Remove the switches and test them for continuity (see figure Identifying Terminals and Testing for Continuity (between terminals 2 and 3) cruise control switch - Ford Probe models).
2. Remove the airbag module.
3. Loosen the mounting screws, disconnect the connection connectors and remove the switches.
4. Installation is carried out in the reverse order of removal.
Mazda models
On these models, the cruise control system has a built-in diagnostic system.
1. To activate the diagnostic system, turn on the ignition and press the Resume/Accel button for three seconds.
2. Two seconds after the cruise control indicator light on the instrument panel goes out, a fault code will be displayed (see table. Cruise control system fault codes for Mazda models).
3. Remove the cruise control switch and test it for continuity (see Cruise Control Main Switch Terminal Identification - Mazda Models).
4. To replace the switch located on the steering column, see the following points: (see table. Cruise control system fault codes for Mazda models).
5. To replace the cruise control main switch, remove the switch from the instrument panel and disconnect the connector.
6. Installation is carried out in the reverse order of removal.
Adjusting the cable tension
Remove the mounting clamp (A) and adjust the cable tension so that it has 3 mm of free play at point (B).