Jaguar XJ 1998 - JagRepair.com
Jaguar XJ 1998 - JagRepair.com
Jaguar XJ 1998 - JagRepair.com
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<strong>XJ</strong> Series <strong>1998</strong><br />
AJ26 4.0 SC NAS Engine Management: Part 1 AJ26 4.0 SC NAS Engine Management: Part 1 Fig. 04.5<br />
63 E<br />
WY<br />
B<br />
EMS38<br />
EM66-2<br />
ECM AND TCM<br />
COOLING FAN<br />
B<br />
EM66-1<br />
S1 S2 S3 S4<br />
EGRV<br />
STEPPER MOTOR EVAPP MAFS CMPS CKPS KS KS ECTS<br />
IATS<br />
A B<br />
υ<br />
υ<br />
A<br />
λ<br />
UPSTREAM<br />
HO2S<br />
B<br />
λ<br />
CANISTER<br />
CLOSE<br />
VALVE<br />
FUEL TANK<br />
PRESSURE<br />
SENSOR<br />
A<br />
λ<br />
DOWNSTREAM<br />
O2S<br />
B<br />
λ<br />
IATS 2<br />
υ<br />
EM16R<br />
PI34 -4 -1 -6 -3<br />
-2 -5<br />
EM39 -1 -2<br />
PI35 -5 -2 -1<br />
-4<br />
-3<br />
S<br />
W<br />
S<br />
W<br />
R<br />
W<br />
R<br />
W<br />
PI4 -2 -1<br />
U<br />
W<br />
B<br />
B<br />
U<br />
W<br />
B<br />
B<br />
CV1 -2 -1<br />
FP1-1 -2 -3<br />
U<br />
W<br />
U<br />
W<br />
PI3 -1 -2<br />
YU<br />
YG<br />
YN<br />
YR<br />
WP<br />
WP<br />
WP<br />
PN<br />
BY<br />
GY<br />
WU<br />
BG<br />
UP<br />
PI15 -1 -2<br />
PI17 -1 -3 -2<br />
PI26 -1 -2 PI27 -1 -2 EM21 -3 -4 -1 -2 EM23 -3 -4 -1 -2<br />
EM22 -2 -1 EM24 -2 -1<br />
9<br />
II<br />
US<br />
79<br />
58<br />
E<br />
CA19-16<br />
CAS81<br />
NG<br />
WP<br />
WO<br />
US<br />
US<br />
CC40-4<br />
CC40-1<br />
LS3-1<br />
3<br />
1<br />
BRAKE SWITCH<br />
US<br />
LSS1<br />
US<br />
47<br />
WR<br />
B+<br />
E<br />
EM10-1<br />
41<br />
WK B+<br />
II<br />
EM10-5<br />
NO<br />
75 B+<br />
EM10-9<br />
48<br />
WR<br />
B+<br />
E<br />
EM14-3<br />
CC11-1<br />
PARKING BRAKE<br />
SWITCH<br />
O.K. TO START<br />
SERIAL COMMUNICATION<br />
SERIAL COMMUNICATION<br />
PARK, NEUTRAL<br />
(CIRCUIT CONTINUED)<br />
EMS CONTROL RELAY<br />
(CIRCUIT CONTINUED)<br />
SECURITY<br />
ACKNOWLEDGE<br />
EM49<br />
5<br />
2<br />
CAN<br />
CAN<br />
CAN<br />
CAN<br />
ECM PROGRAMMING<br />
ENGINE CRANK<br />
ECM PROGRAMMING<br />
THROTTLE MOTOR<br />
POWER RELAY †<br />
O<br />
03.2<br />
D<br />
EM10-6<br />
K<br />
19.2<br />
D<br />
EM10-12<br />
O<br />
19.2<br />
D<br />
EM10-13<br />
RS<br />
05.2<br />
I<br />
EM10-15<br />
PK<br />
01.1 O<br />
EM10-16<br />
Y<br />
03.2<br />
D<br />
EM10-17<br />
G<br />
19.1<br />
C –<br />
EM10-25<br />
Y<br />
19.1<br />
C +<br />
EM10-26<br />
G<br />
19.1<br />
C –<br />
EM10-27<br />
Y<br />
19.1<br />
C +<br />
EM10-28<br />
19.2<br />
GY<br />
EM1-1<br />
OU<br />
US<br />
EM53-11<br />
EMS20<br />
* NOTE: RW and PY color codes are reversed<br />
on early production vehicles.<br />
EMS21 EM10-10<br />
OU<br />
W<br />
GY<br />
GY<br />
GR<br />
US<br />
EM10-14<br />
P<br />
19.2<br />
D<br />
EM11-3<br />
GO<br />
03.2 I<br />
EM11-6<br />
EM13-2<br />
EM14-1<br />
EM14-2<br />
EM13-14<br />
I<br />
I<br />
D<br />
B+<br />
B+<br />
O<br />
O<br />
O<br />
I<br />
I<br />
I<br />
O<br />
I<br />
I<br />
I<br />
O<br />
I<br />
I<br />
I<br />
O<br />
O<br />
O<br />
O<br />
I<br />
I<br />
I<br />
I<br />
I<br />
I<br />
O<br />
O<br />
O<br />
O<br />
O<br />
O<br />
I<br />
I<br />
I<br />
I<br />
I<br />
I<br />
I<br />
O<br />
O<br />
I<br />
I<br />
I<br />
I<br />
O<br />
O<br />
O<br />
O<br />
O<br />
I<br />
I<br />
I<br />
EM10-20<br />
EM10-21<br />
EM10-22<br />
EM10-23<br />
EM11-7<br />
EM11-8<br />
EM11-9<br />
EM11-10<br />
EM11-11<br />
EM11-12<br />
EM11-13<br />
EM11-14<br />
EM11-15<br />
EM11-16<br />
EM12-1<br />
EM12-2<br />
EM12-3<br />
EM12-4<br />
EM12-7<br />
EM12-12<br />
EM12-13<br />
EM12-14<br />
EM12-15<br />
EM12-16<br />
EM12-17<br />
EM12-18<br />
EM12-19<br />
EM12-22<br />
EM13-4<br />
EM13-11<br />
EM13-12<br />
EM13-13<br />
EM13-17<br />
EM13-18<br />
EM13-19<br />
EM13-20<br />
EM13-27<br />
EM13-28<br />
EM13-29<br />
EM14-4<br />
EM14-5<br />
EM14-6<br />
EM14-7<br />
EM14-8<br />
EM14-9<br />
EM14-10<br />
EM14-11<br />
EM14-12<br />
EM15-1<br />
EM15-2<br />
EM15-3<br />
EM15-11<br />
EM15-12<br />
EM15-22<br />
ENGINE CONTROL<br />
MODULE<br />
I<br />
BG<br />
UW<br />
B<br />
BK<br />
RG<br />
UW<br />
UY<br />
G<br />
U<br />
BG<br />
BY<br />
BG<br />
R<br />
K<br />
YU<br />
YG<br />
YN<br />
YR<br />
UP<br />
UP<br />
GY<br />
G<br />
R<br />
N<br />
U<br />
BY<br />
BY<br />
BP<br />
OK<br />
PW<br />
RW*<br />
PY*<br />
N<br />
S<br />
Y<br />
B<br />
BG<br />
P<br />
O<br />
BK<br />
R<br />
R<br />
B<br />
B<br />
B<br />
B<br />
G<br />
G<br />
PS<br />
PU<br />
PN<br />
B<br />
B<br />
B<br />
BK<br />
PI1 -8 -9 -10 -7<br />
YU<br />
YG<br />
YN<br />
EMS19<br />
YR<br />
EMS18<br />
45<br />
E<br />
R<br />
G<br />
46<br />
E<br />
EMS1<br />
PI2-7<br />
PI2-6<br />
56<br />
E<br />
BG<br />
BG<br />
BG<br />
EMS2<br />
UW<br />
UW<br />
EMS36<br />
B<br />
EMS38<br />
B<br />
EMS37<br />
EM8L EM16R EM16L<br />
PIS10<br />
BY<br />
BY<br />
BY<br />
BY<br />
GY<br />
52<br />
E<br />
PI1-6<br />
UP<br />
BG<br />
BG<br />
RG<br />
UW<br />
B<br />
BRD<br />
B<br />
BRD<br />
PW<br />
RW*<br />
PY*<br />
O<br />
O<br />
WR<br />
EM57-2<br />
1<br />
EM57-1<br />
Y<br />
Y<br />
BRD<br />
BRD<br />
2<br />
EM58-1<br />
P<br />
P<br />
EMS9<br />
WR<br />
EM58-2<br />
S<br />
BRD<br />
S<br />
BRD<br />
3<br />
EM59 -1 -2<br />
N<br />
BRD<br />
N<br />
BRD<br />
UY<br />
BG<br />
PI1 -56 -54 -52 -31 -57 PI1 -25 -26 -24 PI1 -22 -23 -21 PI1 -17 -18 PI1 -19 -20 PI1 -5<br />
EM3-8<br />
EM3-12<br />
EM3-9<br />
EM2-18<br />
OK<br />
49<br />
E<br />
50<br />
E<br />
VACUUM<br />
SWITCHING<br />
VALVES<br />
B<br />
EMS11<br />
B<br />
EM17<br />
UY<br />
EMS8<br />
PIS1<br />
FC1-35<br />
FC1-30<br />
FC1-34<br />
R<br />
G<br />
R<br />
BRD<br />
PU<br />
PI33<br />
-2<br />
PI33<br />
-1<br />
WP<br />
THROTTLE<br />
MOTOR<br />
60<br />
E<br />
G<br />
BG<br />
BG<br />
BG<br />
BG<br />
RG<br />
UW<br />
K<br />
BRD<br />
BRD<br />
PS<br />
R<br />
WP<br />
BT4-34<br />
BT4-48†<br />
BT4-35<br />
BY<br />
61<br />
E<br />
FC1-45<br />
UW<br />
OK<br />
WP<br />
OK<br />
PIS9<br />
BG<br />
PI42 PI42 PI42 PI42 PI42<br />
-5 -3 -1 -4 -2<br />
BG<br />
RG<br />
UW<br />
BT5 -1 -2 -3<br />
BRD<br />
U<br />
BRD<br />
EMS3<br />
PI1 -50 -49 -51 -12 -14<br />
PI1 -3 -4 -1<br />
PEDAL<br />
POSITION<br />
UW<br />
MECHANICAL<br />
GUARD<br />
55<br />
E<br />
PEDAL POSITION AND<br />
MECHANICAL GUARD SENSORS<br />
BG<br />
RG<br />
UW<br />
UW<br />
BG<br />
U<br />
G<br />
BRD<br />
PI6 -3 -4 -1 -2<br />
THROTTLE POSITION<br />
SENSOR<br />
THROTTLE ASSEMBLY<br />
† NOTE: Early production vehicles have connector pin numbers that differ<br />
from the volume production pin numbers shown. Use the wire color code<br />
for pin identification on early production vehicles.<br />
N<br />
BRD<br />
BG<br />
UP<br />
PI1-15<br />
UP<br />
1 6<br />
7 47<br />
Fig. 01.1<br />
48 82<br />
1<br />
II<br />
4<br />
II<br />
Fig. 01.2<br />
Fig. 01.3<br />
5<br />
II<br />
45<br />
E<br />
44<br />
II<br />
63<br />
E<br />
Fig. 01.4<br />
Fig. 01.5<br />
1 17<br />
I<br />
Fig. 02.1<br />
I<br />
Input<br />
O<br />
Output<br />
C<br />
S<br />
Signal Ground (SG) CAN (Network) SCP Network<br />
D<br />
Serial and Encoded<br />
Communications<br />
VARIANT: AJ26 4.0 SC NAS Vehicles<br />
VIN RANGE: All<br />
DATE OF ISSUE: SEPTEMBER 1997