Dte P0108: Map Sensor Circuit High Voltage - Honda Civic 2002-2003 Service Manual

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DTe P0108: MAP Sensor Circuit High Voltage
1. Start the engine. Hold the engine at 3,000 rpm with
no load (in neutrall until the radiator fan comes on,
then let it idle.
2. Check the MAP with the scan tool.
Is about 101 kPa (780 mmHg, 30 in.Hg) or higher,
or about 2.9 V or higher indicated?
YES-Go to step 3.
NO-Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the MAP sensor and atthe ECM .•
3. Turn the ignition switch OFF.
4. Disconnect the MAP sensor 3P connector.
5. Connect MAP sensor 3P connector terminals No.2
and No.3 with a jumper wire.
MAP SENSOR 3P CONNECTOR
MAP
IGRN/REDI SGt IGRN/WHTI
JUMPER WIRE
Wire side of female terminals
6. Turn the ignition switch ON (III.
7. Check the MAP with the scan tool.
/s
about 101 kPa (760 mmHg, 30 in.Hg) or higher.
or about 2.9 V or higher indicated?
YES-Go to step 8.
NO-Replace the MAP sensor .•
8. Remove the jumper wire.
9. Measure voltage between MAP sensor 3P
connectorterminals No.1 and No.3.
MAP SENSOR 3P CONNECTOR
Wire side of female terminals
Is there about
5
V?
YES-Go to step 10.
NO-Repair open in the wire between the ECM
(A 111 and the MAP sensor..
10. Turn the ignition switch OFF.
11. Connect ECM connector terminals A 11 and A 19
with a jumper wire.
ECM CONNECTOR A {31 PI
1 2 3 4 5 6 7
9
101112 1516 18192021
22 24 2526 2728 30
SG1
(GRN/WHT)
MAP
L---:;====----.JIGRN/REDI
JUMPER WIRE
Wire side of female terminals
12. Turn the ignition switch ON (III.
13. Check the MAP with the scan tool.
Is about 101 kPa (760 mmHg, 30 in.Hg) or higher.
or about 2.9 V or higher indicated?
YES-Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck Isee page 11-61. If the symptomlindication
goes away with a known-good ECM, replace the
original ECM .•
NO-Repair open in the wire between the ECM
(A 191 and the MAP sensor .•
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