Honda CBR650F Service Manual page 107

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PGM-FI SYSTEM
DTC 8-2 (TP SENSOR HIGH VOLTAGE)
1. TP Sensor System Inspection
Check the TP sensor with the MCS.
Is about 5 V indicated?
YES
NO
2. TP Sensor System Inspection with throttle
operated
Check that the TP sensor voltage increases
continuously when moving the throttle from fully
closed position to fully opened position using the
data list menu of the MCS.
Is the voltage increase continuously?
YES
NO
3. 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/yellow (–)
STANDARD: 4.75 – 5.25 V
Is the voltage within standard value?
YES
NO
4. TP Sensor Line Short Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P (Black) and 33P (Gray)
connectors (page 4-35).
Check for continuity between the wire harness side
TP sensor 3P (Blue) connector [1] terminals.
CONNECTION: Yellow/red – Red/yellow
Is there continuity?
YES
NO
5. TP Sensor Inspection
Replace the throttle body (TP sensor) with a known
good one (page 7-13).
Connect the ECM 33P connectors.
Erase the DTC (page 4-7).
Check the TP sensor with the MCS.
Is DTC 8-2 indicated?
YES
NO
4-18
– GO TO STEP 3.
– GO TO STEP 2.
– Intermittent failure
– Faulty TP sensor
– GO TO STEP 4.
– Open circuit in Green/yellow wire
– Short circuit between Yellow/red and Red/
yellow wires
– GO TO STEP 5.
– Replace the ECM with a known good one,
and recheck.
– Faulty original TP sensor
[1]
[1]
[1]
Y/R
Y/R
G/Y
R/Y