Dtc P0341: Vtc Phase Gap - Honda EP3 Service Manual

VTEC/VTC
1 0 .
DTC Troubleshooting (cont'd)
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 the wire between the ECM
( A 2 5 ) a n d C M P s e n s o r A . I
N O - G o t o s t e p 1 1 .
Turn the ignition switch OFF.
Disconnect ECM connector A (31P)
Check for continuity between ECM connecror
terminal A25 and body ground.
ECM CONNECTON A 131P}
Wire side of femaleterminals
ls tnere continuity?
YES-Repair short in the wire between the ECM
(A25) and the CMP sensor A. t
NO Update the ECt\4 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
o r i g i n a l E C M . I
1 1 .
' t 2 .
11-122
DTC P0341: WC Phase Gap
1 . R e s e t t h e E C M { s e e p a g e 1 1 - 4 ) .
2. Start the engine.
ls DTC P0341 indicated?
YES Go to step 3.
NO Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
t h e C M P s e n s o r A a n d a t t h e E C M . I
3. Check the VTC oil control solenoid valve (see page
11_127]-.
Isthe VTC oil control solenoid valve OK?
YES-Go to step 4.
NO-CIean the VTC oil control solenoid valve, or
r e p l a c e i t ( s e e p a g e 1 1 - ' l 2 7 l . a
4. Remove the head cover, and check the cam chain
{see page 6-12).
ls the cam chain OK?
YES Go to slep 5.
N O R e p l a c e t h e c a m c h a i n ( s e e p a g e 6 - 1 2 ) . 1
5. Check the VTC actuator (see page 6-8).
ls the VTC actuator OK?
YES- U pdate the ECM if it does not have the tatest
soflware, or substitute a known-good ECI\4, then
recheck (see page 11-6). lf the symptom/indication
goes away with a known-good ECM, replace the
o r i g i n a l E C M . I
NO- Replace the VTC actuator.l