Engine General Information and Diagnosis: 1A-38
P0120-L (Use of SDS)
Step Action Yes No
1 1) Remove the left side cover. Refer to “Front Side Exterior
Parts Removal and Installation in Section 9D (Page 9D-
6)”.
2) Turn the ignition switch OFF.
3) Check the TP sensor coupler for loose or poor contacts.
If OK, then check the TP sensor lead wire continuity.
4) Disconnect the TP sensor coupler.
5) Insert the needle pointed probes to the lead wire coupler.
6) Check the continuity between Y wire “B” and ground.
Also, check the continuity between Y wire “B” and B/Br
wire “C”.
If sound is not heard from the tester, the circuit condition
is OK.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Continuity test ( )
Go to Step 2. Y or R wire open, or Y
wire shorted to ground.
I831G1110035-01
“C”
“B”
(B)
(A)
I831G1110037-02
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