Honda CRF1000 Shop Manual page 121

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2. MAP Sensor Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the MAP sensor 3P (Black) connector
(page 4-41).
Turn the ignition switch ON.
Measure the voltage at the wire harness side 3P
(Black) connector [1].
Connection: Yellow/red (+) – Gray/black (–)
Is the voltage within 4.75 – 5.25 V?
YES
NO
3. MAP Sensor System Inspection with Jumper
Wire
Turn the ignition switch OFF.
Connect the wire harness side 3P (Black) connector
[1] terminals with a jumper wire [2].
Connection: Light green/black – Gray/black
Check the MAP sensor with the MCS.
Is about 0 V indicated?
YES
NO
4. MAP Sensor Signal Line Open Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM/PCM 33P (Gray) connector
(page 4-39).
Check for continuity between the wire harness side
3P (Black) connector [1] and 33P (Gray) connector
[2].
TOOL:
Test probe
Connection: Light green/black – C32
Is there continuity?
YES
NO
– GO TO STEP 3.
– Open circuit in the Gray/black wire
– Faulty MAP sensor
– GO TO STEP 4.
07ZAJ-RDJA110
– Replace the ECM/PCM with a known good
one (page 4-39) and recheck.
– Open circuit in the Light green/black wire
PGM-FI SYSTEM
[1]
Gr/Bl Y/R
[1]
Gr/Bl Lg/Bl
[2]
[1] [2]
Lg/Bl C32
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