Twist Grip Position Sensor 1
Twist Grip Position Sensor 2
Fault Code
Possible Cause
Action
P2120
Twist grip position sensor 1 short
circuit to ground or open circuit
View and note diagnostic tool
'freeze frame' data if available
View and note diagnostic tool
'sensor' data
Ensure accelerator position
sensor connector is secure
Disconnect Engine ECM and
proceed to pinpoint test 1:
P2123
Twist grip position sensor 1 short
circuit to battery voltage
Pinpoint Tests
Test
Result
Action
1
Check cable and terminal integrity:
- Engine ECM pin B17
- Engine ECM pin B21
- Engine ECM pin B35
OK
Disconnect accelerator position sensor
and proceed to test 2
Faulty
Rectify fault, proceed to test 5
2
Check cable for short circuit:
- Engine ECM pin B21 to ground
OK
Proceed to test 3
Short circuit
Locate and rectify wiring fault, proceed
to test 5
3
Check cable continuity:
- Engine ECM pin B17 to sensor pin 1
- Engine ECM pin B21 to sensor pin 3
- Engine ECM pin B35 to sensor pin 2
OK
Proceed to test 4
Open circuit
Locate and rectify wiring fault, proceed
to test 5
4
Check cable for short circuit:
- Engine ECM pin B21 to Engine ECM
pin B17
- Engine ECM pin B21 to Engine ECM
pin B35
OK
Renew twist grip position sensor,
proceed to test 5
Short circuit
Locate and rectify wiring fault, proceed
to test 5
5
Reconnect harness, clear fault code
OK
Action complete - quit test
Tiger Explorer XR Series
265 of 746
FUEL SYSTEM / ENGINE MANAGEMENT
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