Service manual

8-45
TPS (THROTTLE POSITION SENSOR) SELF DIAGNOSIS
ELEC
NOTE:
Replace TPS (throttle position sensor).
BAD CONDITION
1. TPS (throttle position sensor)
 Disconnect the throttle position sensor coupler
from the wire harness.
 Connect the pocket tester (Ω  1) to the
throttle position sensor.
Refer to “TPS (THROTTLE POSITION SEN-
SOR) ADJUSTMENT AND INSPECTION” in
CHAPTER 6.
GOOD
CONDITION
2. Wire harness
 Check the wire harness for continuity.
Refer to “CIRCUIT DIAGRAM”.
CONTINUITY
Replace the ignitor unit.
Repair or replace wire harness.
NO CONTINUITY
 Check the TPS (throttle position sensor) for
continuity.
TROUBLESHOOTING
IF THE TACHOMETER’S TPS (THROTTLE POSITION SENSOR) SELF-DIAGNOSIS OPERATES.
Procedure
Check:
1. TPS (throttle position sensor)
2. Wire harness
Use the following special tool(s) in this trouble-
shooting.
Pocket tester:
90890-03112