FI SYSTEM DIAGNOSIS 12-41
6) Remove the fuel tank. (13-2, -3)
7) Disconnect the ECM coupler. (12-60)
8) Insert the needle-pointed probes to the lead wire coupler.
9) Check the continuity between G/B wire C and terminal 6.
10) If OK, then check the continuity between B/Br wire B and
terminal N.
IAP sensor 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?
Step 1 (When indicating P0105-L:)
1) Stop the engine.
2) Check the IAP sensor coupler 1 for loose or poor contacts.
If OK, then check the IAP sensor lead wire continuity.
3) Disconnect the IAP sensor coupler.
4) Insert the needle-pointed probes to the lead wire coupler.
5) Check the continuity between G/B wire C and ground.
6) Also, check the continuity between G/B wire C and B/Br wire
B. If the sound is not heard from the tester, the circuit condi-
tion is OK.
YES Go to Step 2.
NO G/B wire shorted to VCC, or B/Br wire open.
1
ECM coupler (Harness side)
1
1
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