C1641, C1643 - Wheel Speed Signal Error; Simulated Wheel Lock
C1641, C1643 - Wheel Speed Signal Error; Simulated Wheel Lock - Fault - CM8; CR8; CS8; DR5; DS5; HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2; LL1; PB1; PJ1; PJZ; PM1; PR1; PRC; PS1; PSC; PX1; PXC; PY1; PYC
Fault Code | Possible cause | Action |
C1641 | Front wheel speed signal error simulated wheel lock Binding front brake Incorrect Wheel speed sensor air gap Loose or incorrectly installed wheel speed sensor An abnormal manoeuvre was performed (a very long 'wheelie' or 'stoppie with the wheel stopped) | Make sure the ABS modulator connector is secure. Proceed to pinpoint test 1: |
C1643 | Rear wheel speed signal error simulated wheel lock Binding rear brake Incorrect Wheel speed sensor air gap Loose or incorrectly installed wheel speed sensor An abnormal manoeuvre was performed (a very long 'wheelie' or 'stoppie with the wheel stopped) |
Subheading - Pinpoint Test
Pinpoint Tests
C1641, C1643 - Wheel Speed Signal Error; Simulated Wheel Lock - Pinpoint Test - LG1; LGX; LJ2; LK2; LL1
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 0.74 mm to 1.36 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 | ||