Different Tyre Diameter; Pinpoint Tests - Triumph Thunderbird Service Manual

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Different Tyre Diameter
Fault Code
Possible cause
Action
C1671
Incorrect diameter wheels installed
Ensure ABS ECM connector is secure.
Incorrect tyre pressures
Proceed to pinpoint test 1:
Incorrect Wheel speed sensor air gap
Damaged or dirty pulser ring
Pinpoint Tests
Test
Result
Action
1 Check for installation of wheels and tyres of
OK
Proceed to test 2
the correct size
Faulty
Rectify fault, proceed to test 5
2 Check the tyre pressures
OK
Proceed to test 3
Faulty
Rectify fault, proceed to test 5
3 Check the pulser ring for damage or
OK
Proceed to test 4
contamination by road grime or ferrous
metal filings
Faulty
Clean or replace the ABS pulser ring, proceed
to test 5
4 Measure the air gap of the front wheel
OK
Proceed to test 5
speed sensor between the sensor and the
pulser ring:
- Air gap between 0 mm to 1.5 mm
Faulty
Rectify the fault and proceed to test 5
5 Clear fault code and test ABS to verify fault
OK
Action complete - quit test
cleared
Fault still present
Contact Triumph service
12.64
SelVice Manual - Thunderbird

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