Honda NSA700A DN-1 2009, Service Manual

Page: 142 / 654

FUEL SYSTEM (PGM-FI)
4. MAP Sensor Output Line Open Circuit Inspec­
tion
Disconnect the ECM 33P connectors.
Check fo r c o n tin u ity at the Light g re e n /ye llo w
w ire between the MAP sensor 3P (Black) connec­
to r term in a l and the ECM 33P (Light gray) con­
nector.
Connection: B9 - Light green/yellow
TOOL:
Test probe 07ZAJ-RDJA110
Is there c o n tin u ity ?
YES - Replace the ECM w ith a know n good
one. and recheck
NO - Open c irc u it in Light g re e n /ye llo w w ire
DTC 2-1 (M A P S E N S O R )
• Before starting the inspection, check fo r loose or
poor contact on the M AP sensor 3P (Black) co n ­
nector and recheck the DTC.
1. MAP Sensor System Inspection
Turn the ig n itio n sw itch ON and engine stop
sw itch " Q
Start the engine and check the MAP sensor w ith
the HDS pocket tester at idle speed.
Is the voltage w ith in 1 .6 - 1.8 V?
YES - In te rm itte n t fa ilu re
NO - GO TO STEP 2.
2. Manifold Absolute Pressure Test
Turn the ig n itio n sw itch OFF.
Check fo r connection and installation o f the MAP
sensor vacuum hose.
Is the M AP sensor vacuum hose co n n e ctio n c o r­
rect?
YES - GO TO STEP 3.
NO - Correct the hose installation
3. MAP Sensor System Inspection
Replace the MAP sensor w ith a know n good one
(page 6-64).
Turn the ig n itio n sw itch ON and engine stop
sw itch " Q
Start the engine and check the MAP sensor w ith
the HDS pocket tester at idle speed.
Is the voltage w ith in 1 .6 - 1.8 V?
YES - Faulty o rig in a l MAP sensor
NO - Replace the ECM w ith a know n good
one, and recheck.
ECM 33P (LIGHT GRAY) CONNECTOR
(Wire side o f fem ale term inal)
MAP SENSOR 3P (BLACK) CONNECTOR
(W ire side o f fem ale te rm in a l)
R VACUUM HOSE