Engine General Information and Diagnosis: 1A-132
4
Was terminal “Vout” voltage in Step 3 within specification?
Go to Step 5.
“WHT/RED” wire is
open or shorted to
ground / power supply
circuit.
If wire and connection
are OK, substitute a
known-good ECM and
recheck.
5
Ground circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between “BLK/YEL” wire terminal of
CMP sensor connector and engine ground.
Is measured resistance value less than 3
Ω
?
Go to Step 6.
“BLK/YEL” wire is open
or high resistance
circuit.
6
Was terminal “B+” voltage in Step 3 within specification?
Go to Step 7.
“BLU/BLK” wire is open
circuit. If wire and
connection are OK,
substitute a known-
good ECM and recheck.
7
CMP sensor check
1) Check CMP sensor and signal rotor tooth referring to
“Camshaft Position (CMP) Sensor Inspection: in Section
1C”.
Is check result satisfactory?
Substitute a known-
good ECM and recheck.
Replace CMP sensor
and/or intake camshaft.
Step
Action
Yes
No
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