TGB EST 1000, Service Manual

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4-2. FUEL INJECTION SYSTEM
4-2-26
Are the resistance and continuity OK?
YES Go to next step 2
NO Replace CPS sensor with new one
7) After repairing the trouble, clear the DTC
using Diagnosis Tool.
Step 2
1) Crank the engine a few seconds with the
starter motor, and measure the CPS sensor
peak voltage at the coupler.
2) Repeat the above test procedure a few times
and measure the highest peak voltage.
CPS sensor peak voltage: 4.0 V and more
(+ Blue
–
- Sky-Blue)
Is the voltage OK?
YES
•
Blue or Sky-Blue wire open or
shorted to ground
•
Loose or poor contacts on the CPS
sensor coupler or ECU coupler
(terminal 4 or 5)
•
If wire and connection are OK,
intermittent trouble or faulty ECU.
•
Recheck each terminal and wire
harness for open circuit and poor
connection.
•
Replace the ECU with a known good
one, and inspect it again.
NO
•
Inspect that metal particles or foreign
material stuck on the CPS sensor
and rotor tip.
•
If there are no metal particles and
foreign material, then replace the
CPS sensor with a new one.
3) After repairing the trouble, clear the DTC
using Diagnosis tool.
4
5