Triumph TIGER Service Manual page 239

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Code
Fault
P1631
P1632
Test
1 Check cable and terminal integrity:
- ECM pin B21
2 Check cable for short circuit:
- ECM pin B21 to ground
ECM pin B21 to ECM pin A6
-
3 Check cable continuity:
- ECM pin B1 to sensor pin 4
ECM pin B21 to sensor pin 5
-
-
ECM pin B20 to sensor pin 6
4 Check cable for short circuit:
- Sensor pin 4 to sensor pin 5
- Sensor pin 4 to sensor pin 6
5 Check voltage (with ignition on):
- Sensor pin 4
6 Reconnect harness, clear fault code.
Circuit Diagram
10.84
Possible cause
Fall detection switch low input voltage View & note 'freeze frame' data if
Fall detection switch high
voltage or open circuit
Result
OK
Faulty
OK
Short circuit
OK
Open circuit
OK
Short circuit
5V
Less than 4.8V
OK
Fault still present
Fall
ECM Detection
Switch
B20 KB b
B21 KU
5
4
Bl K
Service Manual - Tiger
Action
available. .
input
View & note sensor' data
Ensure switch connector is secure.
Disconnect ECM and proceed to
pinpoint test1:
Action
Disconnect sensor and proceed to test 2
Rectify fault, proceed to test 6
Proceed to test 3
Locate and rectify wiring fault, proceed to test
6
Proceed to test 4
Locate and rectify wiring fault, proceed to test
6
Proceed to test 5
Locate and rectify wiring fault, proceed to test
6
Renew fall detection switch and proceed to
test 6
Locate and rectify wiring fault, proceed to test
6
Action complete, quit test
Contact Triumph service
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