Fault Code | Possible cause | Action |
C1641; C1643 | Binding brake Incorrect Wheel speed sensor air gap Loose or incorrectly installed wheel speed sensor | Ensure ABS ECM connector is secure. Proceed to pinpoint test 1: |
Pinpoint Tests
Test | Result | Action |
1. Check the relevant wheel for brake bind caused by caliper or master cylinder faults, or other mechanical causes | OK | Proceed to test 2 |
Faulty | Rectify the fault and proceed to test 4 | |
2. Measure the air gap of the wheel speed sensor between the sensor and the pulser ring: Air gap between 0.1 mm to 1.5 mm | OK | Proceed to test 3 |
Faulty | Rectify the fault and proceed to test 4 | |
3. Check the wheel speed sensors for correct installation, and the fixings for correct torque | OK | Proceed to test 4 |
Faulty | Rectify the fault and proceed to test 4 | |
4. Clear fault code and test ABS to verify fault cleared | OK | Action complete - quit test |
Fault still present | Contact Triumph service |