Honda CBR125R, Owner'S Manual

Page: 112 / 430

FUEL SYSTEM (PGM-FI)
5-20
3. ECT Sensor Resistance Inspection
Turn the ignition switch OFF.
Measure the resistance between the ECT sensor
terminals.
Is the resistance within 2.3 – 2.6 k
Ω
(20
°
C/68
°
F)?
YES – Replace the ECM with a known good
one, and recheck.
NO – Faulty ECT sensor
4. ECT Sensor Short Circuit Inspection
Turn the ignition switch OFF.
Check for continuity between the ECT sensor 3P
connector of the wire side and ground.
Is there continuity?
YES – Short circuit in Yellow/blue wire
NO – Replace the ECM with a known good
one, and recheck.
DTC 7-2 (ECT SENSOR HIGH
VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the ECT sensor 3P connector and
recheck the DTC.
1. ECT Sensor System Inspection
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Check the ECT sensor with the HDS pocket
tester.
Is about 5 V indicated?
YES – GO TO STEP 2.
NO – • Intermittent failure
• Loose or poor contact on the ECT
sensor 3P connector
Connection: Yellow/blue – Green/orange
Standard:
2.3 – 2.6 k
Ω
(20
°
C/68
°
F)
ECT SENSOR (Sensor side/male terminals)
G/O
Y/Bu
Connection: Yellow/blue – Ground
Y/Bu
ECT SENSOR 3P CONNECTOR
(Wire side/female terminal)