Honda CBF190WH 2016 Shop Manual page 98

DTC 8-1 (TP SENSOR LOW VOLTAGE)
• Fuel tank shroud 3-6
TP Sensor Diagram
Sensor unit 5P connector
G/W
Y/G
Sensor unit
(TP sensor)
1. TP Sensor System Inspection
• Check the TP sensor voltage with MCS.
• Is the voltage about 0 V indicated?
Yes ▼
2. Sensor unit Power Input Voltage Inspection
• Connection: Y/R (+) – G/W (–)
• Is the voltage within 4.75 – 5.25 V?
Yes ▼
3. TP Sensor Output Line Inspection
• Check a open or short circuit in Y/G wire.
• Is there open or short circuit?
No ▼
4. TP Sensor Inspection
• Replace the sensor unit (TP sensor) with a new
one 2-8
• Erase the DTC's.
• Check the TP sensor with MCS.
• If DTC 8-1 is indicated, replace the ECM with a
new one 4-19, and recheck.
Y/R
Y/R
Y/G
G/W
Yes
ELECTRICAL SYSTEM
ECM 33P connector
Y/G
Y/R
VCC
THL
SG
No • Intermittent failure
► • Loose or poor contact at the connector
• Open or short circuit in Y/R wire
No
• If there is no open or short circuit, replace the ECM
►
with a new one 4-19, and recheck.
• Faulty Y/G wire
►
G/W
5 V
ECM
4-9