Honda NSS250S Manual page 183

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3. TP Sensor Output Line Open Circuit Inspection
Turn the ignition switch OFF.
Disconnect the sensor unit 5P (Black) connector.
Disconnect the ECM 33P (Black) connector.
Check the continuity at the White/red wire
between the sensor unit 5P and ECM 33P con-
nectors.
TOOL:
Test probe
CONNECTION: White/red – White/red
Is there continuity?
YES – GO TO STEP 4.
NO – Open circuit in White/red wire
4. TP Sensor Output Line Short Circuit Inspection
Check the continuity between the sensor unit 5P
connector of the wire side and ground.
CONNECTION: White/red – Ground
Is there continuity?
YES – Short circuit in White/red wire
NO – GO TO STEP 5.
5. TP Sensor Inspection
Replace the sensor unit with a known good one
(page 6-88).
Erase the DTC's (page 6-16).
Connect the sensor unit 5P (Black) and ECM 33P
(Black) connectors.
Turn the ignition switch ON and engine stop
switch " ".
Check the TP sensor with the HDS pocket tester.
Is DTC 8-1 indicated?
YES – Replace the ECM with a known good
one, and recheck.
NO – Faulty original sensor unit (TP sensor)
DTC 8-2 (TP SENSOR HIGH VOLTAGE)
1. TP Sensor System Inspection
Turn the ignition switch ON and engine stop
switch " ".
Check the TP sensor with the HDS pocket tester.
Is about 5 V indicated?
YES – GO TO STEP 3.
NO – GO TO STEP 2.
07ZAJ-RDJA110
ECM 33P CONNECTOR
(Wire side/female terminals)
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
FUEL SYSTEM (PGM-FI)
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
White/red White/red
White/red
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