Dtc 12-1 (Fuel Injector) - Honda TRX500FM Service Manual

DTC 12-1 (FUEL INJECTOR)
Before starting the inspection , check for loose or
poor contact on the fuel injector 2P (Gray ) connector
and PCMIECM 33P connectors, and recheck the
DIG.
1. Fuel Injector System Inspection
Erase the DIC (page 4-12).
Turn the ignition switch ON and engine stop switch
"0",
Check the fuel injector with the HDS pocket tester.
Is the
Dre
12·1 indicated?
YES - GO TO STEP 2.
NO Intermittent failure.
• Loose or poor contact of the connected
fuel injector 2P (Gray) connector.
2. Fuel Injector Resistance Inspection
Turn the ignition switch OFF.
Disconnect the fuel injector 2P (Gray) connector.
Measure the resistance at the injector side
connector
[1J
terminals.
Standard : 11.6 - 12.4
a
(20 · e /68· F)
Is the r esistance within 11.6 - 12.4
.n
(20 °C/
6B
G
F)?
YES - GO TO STEP 3.
NO - Fau!ty fuel injector.
3. Fuel Injector Input Voltage Inspection
PGM-FI SYSTEM
111
Q
Turn the ignition switch ON and engine stop swilch , - - -- -- - - - - - - - - - -- - ,
·0". [1) Black/red
Measure the voltage between the wire harness side
fuel injector 2P (Gray) connector [1] terminal and
ground .
Connection : Black/re d(+) - Ground (-)
Is
there battery voltage?
YES - GO TO STEP 4.
NO - Open circuit in the Black/red wire.
4. Fuel Injector Signal line Open Circuit Inspection
Turn Ihe ignition switch OFF.
Disconnect Ihe PCM/ECM 33P (Gray) connector
[1].
Check for continuity between the wire harness side
fuel injector 2P (Gray) connector (2) and PCM/ECM
33P (Gray) connector terminals .
Connection : 833 - Green/black
TOOL:
Test probe 07ZAJ-ROJA 110
Is there continuity?
YES - GO TO STEP 5.
NO - Open circuit in the Green/black wire.
B33 Greenfblack
/
,
=
\1
ff
I
It
121
4-23