2003 HONDA CIVIC reset

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Page 328 of 1139

HONDA CIVIC 2003 7.G Workshop Manual DTC P0340: CMP Sensor A No Signal
DTG P0344: CMP Sensor A Intermittent
Interruption
1. Reset the ECM (see page 11-4).
2. Start the engine.
ls DTC P0340 and/or P0344 indicated?
YES-Go to step 3.
NO In

Page 329 of 1139

HONDA CIVIC 2003 7.G Workshop Manual VTEC/VTC
10.
DTC Troubleshooting (contd)
Measure voltage between ECM connector terminal
A25 and body ground.
ECM CONNECTOR A 131P)
Wire side of female te.minals
ls there about 5 V?
YES-Repair open in

Page 330 of 1139

HONDA CIVIC 2003 7.G Workshop Manual DTC Pl259: WEC System Malf unction
SpecialTools Required. Pressure gauge adapter 07NAJ P07010A
. A/T low pressure gauge w/panel 07406-0070300. A/T pressure hose 07406-0020201. Av/T pressure hose,2,210

Page 338 of 1139

HONDA CIVIC 2003 7.G Workshop Manual DTC Pl519: IAC Valve Circuit Malf unction
1. Resetthe ECM (see page 11-4).
2. Turn the ignition switch ON (ll)
ls DTC P 1519 indicated?
YES Go to step 3.
NO-lntermittent failure, system is OK at this

Page 346 of 1139

HONDA CIVIC 2003 7.G Workshop Manual ECM ldle Learn Procedure
The idle learn procedure must be done so the ECM can
learn the engine idle characteristics.
Do the idle learn procedure whenever you do any of
these actions:. Disconnect the b

Page 367 of 1139

HONDA CIVIC 2003 7.G Workshop Manual Intake Air System
Throttle Body Test
NOTE:. Do not adjust the throttle stop screw. lt is preset at the
factory.. lf the malfunction indicator lamp (MlL) has been
reported on, check for diagnostic trou

Page 374 of 1139

HONDA CIVIC 2003 7.G Workshop Manual Catalytic Converter System
DTC Troubleshooting
DTC P0420: Catalytic System Efficiency
Below Threshold
NOTE: lf some of the DTCS listed below are stored at
the same time as DTC P0420, troubleshoot thos

Page 375 of 1139

HONDA CIVIC 2003 7.G Workshop Manual PCV System
DTC Troubleshooting
DTC P1505: PCV Air Leakage
1. Reset the ECM (see page 11-4).
2. Start the engine. Hold the engine at 3,000 rpm with
no load (in neutral) until the radiator fan comes on