1A-45 Engine General Information and Diagnosis:
3 1) Connect the ECM coupler. Refer to “ECM Removal and
Installation in Section 1C (Page 1C-1)”.
2) Turn the ignition switch ON.
3) Measure the input voltage at the R wire and ground.
If OK, the measure the input voltage at the R and B/Br
wire.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
TP sensor input voltage
4.5 – 5.5 V
((+) terminal: R – (–) terminal: Ground, (+) terminal: R
– (–) terminal: B/Br)
Is the voltage OK?
Turn the ignition switch
OFF and go to Step 4.
Open or short circuit in
the R or B/Br wire.
Step Action Yes No
(A)
(B)
I718H1110035-03
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