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4-76 FI SYSTEM DIAGNOSIS
Is the voltage OK?
10)After repairing the trouble, clear the DTC using SDS tool.
(4-27)
YES
• P wire open or shorted to ground
• 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
• P or B/W wire open, or P wire shorted to ground
• Loose or poor contacts on the ECM coupler
(terminal M or X)
• If wire and connection are OK, replace the GP
switch with a new one.
When using the multi-circuit tester, do not storongly
touch the terminal of the ECM coupler with a needle
pointed tester probe to prevent the terminal damage
or terminal bend.
1
(Black) (Gray)
ECM couplers (Harness side)