Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

&# %+
HONDA Model, Civic 1,411,511,611,8 Civic Coupe 1,511,6
Civic Aerodeck l,4/l,5/l,6/l,8
Engine rnanagement/transrnission
IH- I I
NOTE: Engine control module (ECM) incorporates transmission
control function.
General information
0 Refer to the front of this manual for general test conditions,
terminology, detailed descriptions of wiring faults and a
general trouble shooter for electrical and mechanical faults.
Trouble codes are displayed by the malfunction indicator
lamp (MIL).
n Switch ignition ON. If MIL illuminates to indicate a fault but no
trouble codes are stored, suspect DLCIMIL wiring, MIL or
ECM.
0 Some models 1997-*: The ECM fault memory can also be
checked using diagnostic equipment connected to the spin
data link connector (DLC), type 3.
All models 1999 -*: The ECM fault memory can also be
checked using diagnostic equipment connected to the 5-pin
data link connector (DLC), type 3, or 3-pin data link
connector (DLC), type 4 or 5.
Accessing
Ensure ignition switched OFF.
Bridge 2-pin data link connector (DLC) terminals -
type 1 & 2 0.
NOTE: DO NOT bridge 3 or 5-pin data link connector (DLC)
terminals.
Switch ignition ON.
Count MIL flashes. Note trouble codes. Compare with
trouble code table.
NOTE: No trouble codes stored if MIL illuminates continuously.
Trouble codes 1-9 are indicated as follows:
Individual short flashes display trouble code [A].
0 A short pause separates each flash rn [B].
0 A long pause separates each trouble code H [C].
0 For example: Trouble code 3 displayed H.
Trouble codes greater than 9 are indicated as follows:
Long flashes indicate the 'tens' of the trouble code [A].
Short flashes indicate the 'units' of the trouble code El [C].
A short pause separates each flash El [B].
0 A long pause separates each trouble code El [Dl.
0 For example: Trouble code 12 displayed El.
Switch ignition OFF.
Rectify faults as necessary.
NOTE: If a trouble code is displayed but not listed in the trouble
code table, suspect engiie control module (ECM) fault.
0
c 4
A B A B A C A B A B A
Erasing
Switch ignition OFF.
Remove bridge wire.
Remove BACK UP (RADIO) fuse (7,5A) from underbonnet
fusebox for 10 seconds minimum:
D14A2, D14A5, D14A7, D14A8, D15B2, D15B7, D15Z1,
D15Z3, D15Z8, B16A2 -*1995, D16B2, D16Y2, D16Y3,
D16Y7, D16Y8, D16Z6, D16Z7, D16Z9, B18C4 - 0.
D14A3, D14A4, D15Z6, B16A2 1995-*, D16Y5 - 0.
Refit fuse.
Trouble codes may also be erased by disconnecting battery
lead.
WARNING: Disconnecting BACK UP fuse or battery may erase
memory from electronic units (e.g. radio, clock).
Repeat checking procedure to ensure no data remains in
ECM fault memory.