Sensor Unit Power Line Inspection - After '13 Model; Before Dtc Troubleshooting - Honda PCX150 2013 Service Manual

NOTE:
• When the OTC displays 1-1, 1-2, 8-1, 8-2, 9-1, or 9-
2, check the following before OTC troubleshooting.
• Before starting the inspection, check for loose or
poor contact on the sensor unit SP (Black) connector
and ECM 33P (Black) connector.
1. Sensor Unit Power Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the sensor unit SP (Black) connector
(page 7-15).
Turn the ignition switch ON.
Measure the voltage at the sensor unit SP (Black)
connector [1] of the wire harness side.
Connection: Yellow/white(+) - Green/orange(-)
Standard: 4.75- 5.25 V
Is the voltage within 4.75- 5.25 V?
YES - Turn the ignition switch OFF. Connect the
sensor unit SP (Black) connector and start
the OTC troubleshooting (page 4-34 ).
NO - GO TO STEP 2.
2. Sensor Unit Input Voltage Line Short Circuit
Inspection
Turn the ignition switch OFF.
Check for continuity between the sensor unit SP
(Black) connector [1] of the wire harness side and
ground.
Connection: Yellow/white - Ground
Is there continuity?
YES - Short circuit in the Yellow/white wire
NO - GO TO STEP 3.
3. Sensor Unit Power Line Open Circuit Inspection
Disconnect the ECM 33P (Black) connector (page
4-49).
Check for continuity between the sensor unit SP
(Black) connector [1] and ECM 33P (Black)
connector [2] of the wire harness side.
Connection: AS - Green/orange
AG-Yellow/white
TOOL:
Test probe, 2 pack 07ZAJ-RDJA 110
Is there continuity?
YES - Replace the ECM with a known good one
and recheck.
NO - • Open circuit in the Yellow/white wire
• Open circuit in the Green/orange wire
SYSTEM
[1]
[1]
Yellow/white
[1]