Honda CBR650RA Shop Manual page 156

dummyhead dummyhead
PGM-FI SYSTEM
3. ECT Sensor Line Open Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P (Black) and 33P (Gray)
connectors (page 4-76).
Check for continuity between the wire harness side
ECT sensor 2P (Blue) connector [1] and ECM 33P
(Black) [2] and 33P (Gray) [3] connector terminals.
TOOL:
Test probe
CONNECTION:
Pink/yellow – Pink/yellow
Green/orange – Green/orange
Is there continuity?
YES
NO
4. ECT Sensor Resistance Inspection
Turn the ignition switch OFF.
Remove the ECT sensor (page 4-79).
Measure the resistance between the 2P connector
terminals of the ECT sensor [1].
STANDARD: 1.0 – 1.3 kΩ (40°C/104°F)
Is the resistance within standard value?
YES
NO
P0122 (TP SENSOR LOW VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the TP sensor 3P (Blue), ECM 33P
(Black) and 33P (Gray) connectors, and recheck the
DTC.
1. TP Sensor System Inspection
Check the TP sensor with the MCS or GST with the
throttle fully closed.
Is about 0 V indicated?
YES
NO
2. TP Sensor Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the TP sensor 3P (Blue) connector [1].
Turn the ignition switch ON with the engine stop
switch " ".
Measure the voltage between the wire harness side
TP sensor 3P (Blue) connector terminals.
CONNECTION: Yellow/red (+) – Green/orange (–)
STANDARD: 4.75 – 5.25 V
Is the voltage within standard value?
YES
NO
4-52
07ZAJ-RDJA110
– Replace the ECM with a known good one,
and recheck.
– • Open circuit in Pink/yellow wire
• Open circuit in Green/orange wire
– Replace the ECM with a known good one,
and recheck.
– Faulty ECT sensor
– GO TO STEP 2.
– Intermittent failure
– GO TO STEP 4.
– GO TO STEP 3.
[3]
P/Y
[1]
G/O
[1]
[1]
[2]
G/O
P/Y
[1]
Y/R G/O