1A-41 Engine General Information and Diagnosis:
P0120-H (Use of SDS)
Step Action Yes No
1 1) Turn the ignition switch OFF.
2) Lift and support the fuel tank. Refer to “Fuel Tank
Removal and Installation in Section 1G (Page 1G-7)”.
3) Check the TP sensor coupler (1) for loose or poor
contacts.
If OK, then check the TP sensor lead wire continuity.
4) Disconnect the TP sensor coupler.
5) Turn the ignition switch ON.
6) Measure the input voltage between the R wire “A” and B/
Br wire “B”.
If OK, then measure the input voltage between the R
wire “A” and B/Br wire “B”.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
TP sensor input voltage
4.5 – 5.5 V
((+) terminal: R – (–) terminal: Ground, (+) terminal: R
– (–) terminal: B/Br)
Is the voltage OK?
Go to Step 2. Open circuit in the R
wire.
1
I944H1110021-01
(A)
V
“A”
“B”
I944H1110121-01
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