Acura 1994 Integra Service Manual page 98

wEc
6-38
Troubleshooting Flowchart - VTEC Pressure Switch
Refer to page 11-32thru 11-39 beJore troubleshooting'
-.+-
-r";-r-
Malfunction Indicator Lamp (MlL) indicates Oiagnostic Troubles Code
(DTC) 22: A problem in the VTEC
- l{{?l-
;l
ziz r: pressur€ Switch circuit.
- l r @ l - | 2 2 1 -
* Road Test:
Accolerato in lst gear to an engine speed over 6000 rpm
Hold that engine speed for at least two seconos'
lf the MIL does not come on during the first road test'
reoeat this test two more limes.
- MIL har bagn.oportcd on.
-
With t.rvic.
chack connactor
iump.d, cod€ 22 it indic.t.d.
D o t h e e n g i n e c o n t r o l m o d u l e
(ECM)Reset Procedure.
Warm !p engine to normal oper-
ating temperstur€ (cooling fan
comes on).
Do the Boad T€st.'
Intc.mift.nt failu.o, ry3tom ia OK
at thi. tim..
Chack for pool connaction3 ol
loo!. rvirat at VTEC Ptasturo
3whch and ECM.
ls MIL on and does it indi'
cate code 22?
Turn lhe ignition switch OFF
D i s c o n n e c t t h e 2 P c o n n e c t o r
lrom the VTEC Pressure switch.
C h e c k I o r c o n t i n u i t y b e t w e e n
BLK terminal and body ground.
Rcpair opcn in BLK wit. botwcon
2P connector rnd body ground
tG101l.
C h e c k f o r c o n t i n u i t y b e t w e e n
8LU/8LK terminal and D6 termi'
nal.
(To page 6 39)