Honda CRF1000 Shop Manual page 136

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PGM-FI SYSTEM
3. O
Sensor Heater Input Voltage Inspection
2
Turn the ignition switch ON.
Measure the voltage between the wire harness side
4P (Black) connector [1] and ground.
Connection: Black/white (+) – Ground (–)
Is there battery voltage?
YES
NO
4. O
Sensor Heater Line Open Circuit Inspection
2
Disconnect the ECM/PCM 33P (Black) connector
(page 4-39).
Check for continuity between the wire harness side
O
sensor 4P (Black) connector [1] and ECM/PCM
2
33P (Black) connector [2].
TOOL:
Test probe
Connection: White – C7
Is there continuity?
YES
NO
5. O
Sensor Heater Line Short Circuit Inspection
2
Check for continuity between the wire harness side
4P (Black) connector [1] and ground.
Connection: White – Ground
Is there continuity?
YES
NO
4-28
– GO TO STEP 4.
– Open circuit in the Black/white wire
07ZAJ-RDJA110
– GO TO STEP 5.
– Open circuit in the White wire
– Short circuit in the White wire
– Replace the ECM/PCM with a known good
one (page 4-39) and recheck.
[1]
Bl/W
[1]
[2]
W
C7
[1]
W

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