FI SYSTEM DIAGNOSIS 5-63
Step 1 (When indicating P1654-L:)
1) Turn the ignition switch OFF.
2) Remove the right air cleaner box. (#6-13)
3) Check the STP sensor coupler for loose or poor contacts.
If OK, then check the STP sensor lead wire continuity.
STP sensor lead wire coupler: Black
4) Disconnect the STP sensor coupler.
5) Check the continuity between Y/W wire
A and ground.
6) Also, check the continuity between Y/W wire
A and B/Br wire
C. If the sound is not heard from the tester, the circuit condi-
tion is OK.
7) Disconnect the ECM coupler. (#5-37)
8) Check the continuity between Y/W wire
A and terminal
J.
9) Also, check the continuity between Red wire
B and terminal
A.
"
$ STPS lead wire continuity: Continuity (( )
! 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
) Tester knob indication: Continuity test (()
Is the continuity OK?
10)After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
1
1
]
When using the multi-circuit tester, do not strongly
touch the terminal of the ECM coupler with a needle
pointed tester probe to prevent the terminal damage
or terminal bend.
YES Go to Step 1 (#5-61) and go to Step 2.
NO
Red or Y/W wire open, or Y/W wire shorted to
ground
ECM coupler (Harness side)
(Black)
(Gray)
1
]
To Next Page
Loading...
