PGM-FI System HONDA CIVIC 2002 7.G Owner's Manual

PGM-FI System
(
a
DTC Troubleshooting (cont'd)
6. Substitute a known-good Ay'F sensor (Sensor 1)and
recheck.
Is DTC P1158 ind icated?
YES Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 1 1-6). if the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
NO- Replace the Ay'F sensor (Sensor 1). t
11-86
DTC Pl159: A,/F Sensor (Sensor 1) AFS +
Terminal Low Voltage
1. Resetthe ECM (see page 11-4).
2. Sta rt the engine.
ls DTC P1159 ind icated?
YES-Go to step 3.
NO-lntermiftent failure. system is OK at this time.
Check for poor connections or loose terminais at
the A,/F sensor (Sensor 1) and at the ECM.I
3. Turn the ignition switch OFF.
4. Disconnect the Ay'F sensor (Sensor 1) 4P connector
and EcM connector A (31P).
5. Check for continuity between ECM connector
terminal 46 and body ground.
ECM CONNECTOR A {31PI
Wire side of female terminals
ls there continuity?
YES-Repair short in the wire between the Ay'F
sensor (Sensor 1) and the ECM (AO).I
NO Go to step 6.

PGM-FI System
DTC Troubleshooting (cont'dl
DTC Pl163: Ay'F Sensor (Sensor 1 ) SlowResponse
NOTE: lf DTC P1162 is stored at the same time as DTC
P1163. troubleshoot DTC P1162 first, then recheckfor
DTC P1163.
1. Reset the ECM (see page 1 1-4).
2. Start the engine. Hold the engine at 3,000 rpm with
no load (in neutral) until the radiator fan comes on.
3. Test-drive under the following conditions:
. 55 mph (89 km/h) steady speed' Transmission in sth gear' Until the Ay'F sensor readiness code or
Temporary DTC Pl163 comes on
4. Check for a Temporary DTC with the scan tool.
ls Temporary DTC P 1163 indicated?
YES Replace the Ay'F sensor (Sensor 1).I
NO Intermittent failu re, system is OK at this time.
Check for poor connections or loose terminals at
the A'lF sensor (Sensor 1 ) and at the ECM. t
11-88
DTC Pl164: A,/F Sensor (Sensor 1) Circuit
Range/Performance Problem
1. Resetthe ECI\4 (see page 1t-4).
2. Start the engine. Holdtheengineat3,000 rpmwith
no load (in neutral) until the radiator fan comes on,
3. Test-drive in 3rd gear. Starting at 1,600 rpm,
accelerate using wide open throttle for at least
5 seconds. Then decelerate for at least 5 seconds
with the throttle completely closed until the A,/F
sensor readiness code is set to complete or
Temporary DTC P1 164 comes on.
4. Check for a Temporary DTC with the scan tool.
ls Temporary DTC P1164 indicated?
YES- Replace the A,,/F sensor (Sensor 1). I
NO Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the Ay'F sensor relay, at the Ay'F sensor (Sensor 1),
and at the EcM.l

PGM-FI System
DTC Troubleshooting (cont'dl
9. Connect ECM connector terminal EStobodyground with a jumper wire, then measure voltage
between ECM connector terminals A1 and 424.
ECM CONNECTORS
Wire side of female terminals
ls there battery voltage?
YES- Update the ECM if it does not have the latest
soflware, or substitute a known-good ECM, then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM. t
NO Repair open in the wire between the Ay'F
sensor (Sensor 1) and ECM (A1). t
Turn the ignition switch OFF.
Disconnecl the ECfM connector A (31P) and the Ay'F
sensor (Sensor 1) 4P connector.
Check for continuity between the Ay'F sensor(Sensor 1) 4P connector terminal No. 3 and bodyground.
A/F SENSOR (SENSOR 1) 4P CONNECTOR
10.
11.
12.
11-90
Wire side ot Iemale terminals
t5.
14.
ls there continuity?
YES Repair short in the wire between the A|/F
sensor relay, A,/F sensor {Sensor 1) and ECM
lA22J.a
NO Go to step 13.
Turn the ignition switch ON (ll).
Measure voltage between ECM connector
terminals E8 and A24.
ECM CONNECTORS
E {31 P)
a {31 P)
Wire side of female terminals
ls there battety voltage?
YES-Repair open in the wire between the ECM(A22) and the IVF sensor (Sensor 1). I
NO-Go to step 15.
Check for continuity in the wires between the Ay'F
sensor and the fuses.
ls there continuity?
YES-The wires are OK. Replace the A,/F sensor
relay.l
NO Repair open in the wire between the Ay'F
sensor relay and the fuses.l

PGM-FI System
I
a
DTC Troubleshooting (cont'dl
DTC Pl297: ELD Circuit Low Voltage
1. Reset the ECM {see page 11-4).
2. Start the engine.
3. Turn on the headlights.
ls DTC P1297 indicated?
YES Go to step 4.
NO Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the ELD and at the ECM.I
4. Turn the ignition switch and the headlights OFF.
5. Disconnectthe ELD 3P connector.
6. Turn the ignition switch ON {ll).
7. Measure voltage between body ground and ELD 3P
connector terminal No. 3.
ELO 3P CONNECTOB
{GRN/REDI
Wire side of female terminals
ls there about 5 V?
YES Replace the ELD. t
NO-Go to step 8.
Z3ELD
11-92
8. Turn the ignition switch OFF.
9. Disconnect ECM connector E {31P).
10. Check for continuity between body ground and
ECM connector terminal E15.
ECM CONNECTOR E 131PI
I l2l3456178I
totd/ 12021,2 2al2/tA31
ELD(GRN/RED}7\'
Wire side of female terminals
ls there continuity?
YES-Repair short in the wire between the ECM(E 15) and the ELD. r
NO- U pdate the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I

PGM-FI System
DTC Troubleshooting (cont'dl
12, Check for continuity between ELD 3P connector
terminal No.2 and body ground.
ELD3P CONNECTOR
Wire side of female terminals
ls there continuity?
YES Go to step 13.
NO- Repair open in the wire between the ELD and
G201. I
Reconnect the ELD 3P connector and ECM
connector E (31P).
Start the engine and let it idle.
While measuring voltage between ECM connector
terminals 424 and E15, turn the headlights on
th igh).
ECM CONNECTORS
Wi.e side of female terminals
Does the voltage drop?
YES-Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck {see page 1 1-6). lf the symptom/indicationgoes away with a known-good ECM, replace the
original ECM.I
NO Replace the ELD.I
14.
t5_
11-94

PGM-FI System
DTC Troubleshooting (cont'd)
10. Measure voltage between ECI\4 connectorterminal
A26 and body ground.
ECM CONNECTOR A (31P)
12345617I
011 121./61,/ 18I2C2l
23 2421 m30
TDC {GRN}
Wire side oI temale terminals
ls there about 5 V ?
YES - Repair open in the wire between the ECM(426) and CMP sensor B (TDC sensor).1
NO-Go to step 11.
Turn the ignition switch OFF.
Disconnect ECIM connector A (31P)
Check for continuity between ECM connector
terminal 426 and body ground.
ECM CONNECTOR A {31PI
Wire side of female terminals
ls there continuity?
YES Repair short in the wire between the ECM(426) and the CMP sensor B (TDC sensor).1
NO Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
11.
12.
11-96
DTC Pl607: Malfunction in ECM Internal
Circuit
1. Resetthe EC|\il lsee page 11-4).
2, Turn the ignition switch ON (ll), and wait for
40 seconds.
ls DTC P 1607 indicated?
YES Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11 6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECM.I
NO Intermittent failure, system is OK at this time.
A low battery can cause this problem . Ask the
customer if there has been any recent trouble
starting the engine.l
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PGM-FI System
MIL Circuit Troubleshooting (cont'dl
11.
Try to start the engine.
Does the engine start?
YES-Go to step 11.
NO-Go to step 14.
Turn the ignition switch OFF.
Connect ECM connector terminal E31 to bodyground with a jumper wire.
10.
12.
ECM CONNECTOR E 13lPI
MIL(GRN/ORN}
Wire side of female terminals
Turn the ignition switch ON (ll).
ls the M lL on?
YES Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECIM, replace the
original ECM.I
NO-Check for an open in the wire between the
ECM (E31) and the gauge assembly. Also check for
a blown MIL bulb. lf the wires and the bulb are OK,
replace the gauge assembly.l
Turn the ignltion switch OFF,
Inspect the No. 6 ECU (ECIM) (15A) fuse in the
under-hood fuse/relay box.
ls the f use OK?
YES-Go to step 22.
NO-Go to step 16.
't 4.
15.
ll2l345617l 18I
415161,/ 1182(2t2'23 24z7l/ 12931
JUMPERWIRE
11-98
to.Remove the blown No. 6 ECU {ECfU) (154) fuse
from the under-hood fuse/relay box.
Remove the glove box (see page 20-63) and the
PGM'FI main relay 1.
Check for continuity between body ground and
PGM-Fl main relay 1 4P connector terminals No. 2
and No. 4 individuallv.
PGM-FI MAIN RELAY 14P CONNECTOR
Wrre srde ol lemale termrnals
ls there continuity?
YES-Repair short in the wire between the No.6
ECU (ECl\4) (15A) fuse and the PGM-Fl main relay 1.
Also replace the No.6 ECU (ECM) (15A) fuse.l
NO-Go to step 19.
17.
18.
fVBv) (wHr/
IA BLK)(

PGM-FI System
25.
MIL Circuit Troubleshooting (cont'dl
Check for continuity between ECM connector
terminal E9 and body ground.
ECM CONNECTOR E (31P)
Wire side o{ {emale terminals
ls therc continuity?
YES-Go to step 26.
NO Replace the No. lTFUELPUMP(15A)fuse,
and update the ECM if it does not have the latest
software. or substitute a known-good ECM, then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM. replace the
original ECM.I
26. Remove the PGM-Fl main relay 2 (A).
11-100
27. Check for continuity between ECIVI connector
terminal Eg and body ground.
ECM CONNECTOR E 131P)
Wire side oI Jemale terminals
ls there continuity?
YES Repair short in the wire between the No. 17
FU EL PUMP (15A)fuse and the ECM (E9), or
between the No. 17 FUEL PU MP (15 A) fuse and the
PGM-FI main relay 2. Also replace the No. 17 FUEL
PUMP (15A)fuse.l
NO Go to step 28.
Remove the rear seat cushion (see page 20-80).
Remove the access panel from the floor.
Disconnect the fuel pump 5P connector.
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28.
29.
30.

PGM-FI System
MIL Circuit Troubleshooting (cont'dl
37. lvleasure voltage between ECM/PCM connector
terminal E7 and body ground.
ECM CONNECTOR E {31PI
Wire side of female terminals
ls there battery voltage?
YES Go to step 42.
NO Go to step 38.
Turn the ignition switch OFF.
Remove the PGM-FI main relay 1
38.
39.{A}
-A
MRLY
11-102
40. lvleasure voltage between PGN4-Fl main relay 1 4P
connector terminal No. 4 and bodv qround.
PGM-FI MAIN RELAY 1ilP CONNECTOR
41.
ls there battery voltage?
YES-Go to step 41.
NO Repair open in the wire between the No. 6
ECU (ECM) (15A) fuse and the PGfM-Fl main relay 1.
I
Check for continuity between PGM-FI main relay 1
4P connector terminal No. 3 and ECM connector
terminal E7.
PGM.FI MAIN RELAY 14P CONNECTOR
\
ECM CONNECTOR E 131PI
ls there continuity?
YES-Testthe PGM-Fl main relay 1 (see page 22-
51 ). lf the relay is OK, update the ECM if it does not
have the latest software, or substitute a known-
good ECM, then recheck {see page 1 1'6). lf the
symptom/indication goes away with a known-good
ECM, replace the original ECM.I
NO*Repair open in the wire between the PGM-FI
main relay 1 and the ECM (E7).1
Wire side ot lemale terminals
MRLY (RED/YEL)
MRLY (RED/YEL)
Wire side of female terminals

PGM-FI System
MIL Circuit Troubleshooting (cont'dl
51. Measure voltage between body ground and ECM
connector terminals 44, A5, 423, and 424
individuallv.
ECM CONNECTOR A 131P)
PG2 (BLK) PG1 IBLKI
Wire side of female terminals
ls there morc than 1.0 V ?
YES Go to step 52.
NO-Repair open in the wire(s) that had more than
1.0 V between G 10'l and the ECM (A4, A5, A23,
A24l.a
Measure voltage between body ground and ECM
connector terminal 421.
ECM CONNECTOR A 131P)
Wire side of female terminals
ls there about 5 V?
YES-Go to step 60.
NO-Go to step 53.
11-104
53.
54.
Turn the ignition switch OFF.
Disconnect the manifold absolute pressure (MAP)
sensor 3P connector.
Turn the ignition switch ON (ll).
Measure voltage between body ground and ECM
connector terminal A21.
ECM CONNECTOR A {31P)
Wire side of female terminals
ls there about 5 V?
YES Replace the MAP sensor.l
NO Go to step 57.
Turn the ignition switch OFF.
Disconnect ECM connector A (31P).
55.
56.
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57.
58.