Honda Civic 2002-2003 Service Manual page 327

VTEC/VTC
OTe Troubleshooting (cont'd)
8. Remove the VTC strainer (A). Check the VTC
strainer for clogging.
Is the strainer OK?
YES-Go to step 9.
NO-Clean the VTC strainer, then replace the
engine oil filter and the engine oil..
9. Check the VTC oil control solenoid valve (see page
11-127).
Is the VTC oil control solenoid valve OK?
YES-Go to step 10.
NO-Clean the ports of the VTC oil control solenoid
valve, or replace the VTC oil control solenoid valve
(see page 11-127) .•
10. Install the VTC oil control solenoid valve.
11. Start the engine. Hold the engine at 700-1,000 rpm.
12. Connect ECM connectorterminal B23 to body
ground with a jumper wire.
ECM CONNECTOR B 124PI
6 7
15
17 18 23
VTC- JUMPER
IBLK/WHTI WIRE
=
Wire side of female terminals
11-120
13. Connect ECM connector terminals A3 and Bl with a
jumper wire momentarily.
NOTE: Do not jump for more than 1 minute.
ECM CONNECTORS
A (31PI
J
IGPI (VEL/BLKI
1 2 3 4 5 6 71 / 9
10
111121/1/ 15 16 1/118119 2021
JUMPER
WIRE
22231241
~
27128129 3D
B (24P)
- I 2314151
f6'7
VTC-
(BLUI WHT)
8 9 101/1/1131/
1/1 1/1211/
15 1/
1/
17 18 23
Wire side of female terminals
Did the engine stall or run rough?
1/
YES- Test-drive at a steady speed between
20-40 mph (30-60 km/h) for 10 minutes.
If temporary DTC
POOll
is indicated, update the
ECM if it does not have the latest software, or
substitute a known-good ECM, then recheck (see
page 11-6). )f the symptom/indication goes away
with a known-good ECM, replace the original
ECM .•
NO-Go to step 14.
14.
Check the VTC actuator (see page
6-8).
Is the VTC actuator OK?
YES-Remove the auto-tensioner (see page 4-28),
and clean or replace the VTC oil strainer. Update
the ECM if it does not have the latest software, or
substitute a known-good ECM, then recheck (see
page 11-6). If the symptom/indication goes away
with a known-good ECM, replace the original ECM .
•
NO-Replace the VTC actuator .•
•
•
•