Honda TRX500FM Service Manual

PGM-FI SYSTEM
2. TP Sensor Inspection
Check thai the TP sensor voltage inc re ases
continuously when the
thr oWe is moved to fully
closed position to fully open position, using the data
list menu of the HOS pocket tester.
Do es the voltage increase continuously ?
YES - Intermittent fa ilure.
NO - Faulty sensor unit ( TP sensor).
3. TP
Sensor Resistance Ins pection at PCM/ECM
Connector
Turn the ignition switch OFF.
Disconnect the PCMlECM 33P ( Gray ) connector [1].
Measure the resistance between the wire harness
side
PCM/ECM 33P (Gray) connector terminals.
Connection : B2 - B3
TOOL :
Test probe 07ZAJ·ROJA 110
Standard : 1.0 - 3.0 kO (20°C/68°F)
Is the resistance within 1.0 - 3.0 kQ (20°C/68°F)'J
YES
- GO TO S TE P 5.
NO - GO TO S TE P 4.
4. TP Sensor Ground Line Op en Circuit Insp ect ion
Disconnect the sensor unit 5P (Black) connector [1].
Check for continuity between the wire harness side
sensor unit 5P (Black) connector 121 and PCMlECM
33P (Gray) connector
121lerminals.
Connection : B2 - Green / red
TOOL :
Test probe
Is there continuity ?
YES - GO TO STEP 5.
07ZAJ· RDJA 110
NO - Open circuit in th e Green/red wi re.
5. TP Sensor Input Voltage Inspe ctio n
Disconnect the sensor unit SP (Black) connector (1] .
Turn the ignition switch
ON and engine stop switch
·0 · .
Measure the voltage between the wire harness side
sensor unit SP (Black) connector terminals.
Connection : Brown / white (+) - Green/red 1-)
Is the voltage within 4 .7 5 - 5.25 V?
111
111
92
Brownlwhite
YES - Replace the PCMlECM wi th a known good 111
one (page 4-34), and recheck.
NO - Faulty sensor unit (TP sensor).
4·20
93 92
121
Green/red
Green/red

Honda TRX500FM Specifications

General

Brand	Honda
Model	TRX500FM
Category	Offroad Vehicle
Language	English