1A-27 Engine General Information and Diagnosis:
1 6) Measure the voltage at the R wire and ground.
If OK, then measure the voltage at the R wire and B/Br
wire.
IAP sensor input voltage
4.5 – 5.5 V
(Positive terminal: R – Negative terminal: Ground,
Positive terminal: R – Negative terminal: B/Br)
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Is the voltage OK?
Go to Step 2. • Loose or poor
contacts on the ECM
coupler (terminal (14)
or (4)). Refer to
“Terminal Alignment
of ECM Coupler
(Harness Side)
(Page1A-5)”.
• Open or short circuit
in the R wire or B/Br
wire.
Step Action Yes No
(A)
I705H1110135-01
(A)
I705H1110136-01
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