4-32 FI SYSTEM DIAGNOSIS
.
Is the voltage OK?
"
3) After repairing the trouble, clear the DTC using SDS tool.
(#4-26)
YES
• W or B wire open or shorted to ground.
• Loose or poor contacts on the CKP sensor cou-
pler or ECM coupler (terminal

6 or

J).
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO
• Inspect that metal particles or foreign material
stuck on the CKP sensor and rotor tip.
• If there are no metal particles and foreign mate-
rial, then replace the CKP sensor with a new
one.
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.
2
ECM coupler (Harness side)
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