Honda Civic Service Manual page 378

PGM-FI System
Engine Control Module/Powertrain Control Module (ECM/PCMI
('96 - 98 Models,'99 - 00 Dl6Y5 engine with M/Tl (cont'd)
NOTE:
. When there is oo Diagnostic Trouble Code (DTC) stored, the MtL wi stay on if the SCS
servace connector is connected and the ignition switch is on,
. lf this symptom is intermittent, checklor:
-
A loose Fl E/M 115 A) fuse in the under hood luse/relay box
-
A loose No. 13 FUEL PUMP fuse (15 A) in the underdash fuse/relay box
-
An intermittent shon in the wire between the ECM/PCM (C7) and the service cnecK
connector
-
A n i n t e r m i t t e n t s h o r t i n t h e w i r e b e t w e e n t h e E C M / P C M ( A 1 8 ) a n d t h e g a u g e
assembly
-
An intermittent shon in the wire between the ECM/PCM {D4) and the MAp sensor
An intermittent short in the wire between the ECM/PCM (D10), the Tp sensor, the
EGR valve l:ft sensor (D16Y5 engine) and/or the Fuel tank pressure sensor (,96
Dl6Y8 engine (coupe), '97 016Y7 engine (coupe: KL model, sedan: KL (LX) modeli,
'97 016Y8
engine {coupe: all models, sedan: KL modeti,'98,all models}
-
PGM-FImain relay
. See the OBD ll scan tool or Honda PGM Tester user's manuals lor specitic operating
instructions.
ECM/PCM CONNECTOR C 13lPI
W i r e s i d e o f f e m a l e t e r m i n a l s
(To page 11 109)
(To page 11,109)
1 1 - 1 0 8
The Maltunction Indicator Lamp
(MlLl stays on o. comes on eftar
two s€conds,
Check the Oiagnoslic Trouble
Code {DTC}I
1. Connect a scan tool or Honda
PGM Tester.
2. Turn the ignition switch ON (ll).
3. Read the DTC with the scan
tool or Honda PGM Tester.
Go to troubleshooting p.oc€dur€s
(se€ pago 11{11.
Are any DTC{s) indicated?
Check the DTC by MIL indication:
1. Turn the ignition switch OFF.
2. Connect the SCS service con,
n e c t o r t o t h e s e r v i c e c h e c k
connector.
3. Turn the ignition switch ON (lli.
Repair opon ol short in wire
botwoen the ECM/PCM (C8)
and Data Link Connector.
Go to troublelhooting proce-
dure ls6e page 11-811.
Does the MIL indicate any DTC?
Try to start the engine.
Does the engine start?
Check for a short in the wire
(SCS lin€l:
1 . D i s c o n n e c t t h e S C S s e r v i c e
connector.
2. Stop the engine and turn the
ignition switch ON {lli.
3. Measure voltage between the
ECM/PCM connector terminal
C7 and body ground.
Ropair short to body Iround in
the wire betweon ECM/PCM lCTl
and sorvice check connector.
ls there approx. 5 V?
scs tBRNI