B-1a ENGINE CONTROL SYSTEM SIGMA 3.

BATTERY

40A IG1 1 FUEL PUMP RELAY

B[B] G[M]
(SECTION B-1f)
JB-01 JB-04 X-36
10A P/TRN IGNITION
7
5 2 IGNITION FAILURE
SWITCH L[C] 8 SENSOR
3 1 4 6 (SECTION B-1b)
8
MAIN ST IG2 IG1 ACC L[M]
RELAY 12
X-36
10 10A ENG 20 12 14 10
Y[M] L[M] L[C] L[C]
JB-13 JB-12 X-10 SC-13
JB-02 B-01
1
C29
G/O[M]
ENGINE CONTROL UNIT
X-11
24
B17 B7 B19 A32 A1 A9 A24 A2 A10 A25
G/O[C]
B-01
CONDENSER FAN
LOW RELAY 28 O[C] O[C] BR[C]
(SECTION B-3) L[C] R[C] Y[C] W[C] G[C] O[C]

10A ECU 9 14
15A O 2 -DN 21
(SECTION B-1e) 5 O[M]
X-11
JB-06 X-10 3 8 2 7 1 6
X-45
15A
VARIABLE INTAKE
INJ
SOLENOID VALVE
10 1 2
G[M] BR[M] R[INJ] L[INJ] Y/W[INJ] L/W[INJ] Y[INJ] W/B[INJ]
JB-03 B-08 B-08
11 14 9 7 6 4
G[M] G[C] G[C] R/B[INJ]

L[M]
JB-02 JB-02 X-10 SC-13 SC-13 X-45 R/B[INJ]
JB-08
10 B-02 B-03 B-04 B-05 B-06 B-07
1 2 1 2 1 2 1 2 1 2 1 2
38 G[E] 6
CONDENSER FAN AIR FLOW PURGE SOLENOID
HIGH RELAY 11 SENSOR VALVE
(SECTION B-3) (SECTION B-1e) (SECTION B-1d) INJECTOR #1 INJECTOR #2 INJECTOR #3 INJECTOR #4 INJECTOR #5 INJECTOR #6

( ) : IMMOBILIZER
(A) (B) (C)
8 7 6 5 4 3 2 1 7 6 5 4 3 2 1 7 6 5 4 3 2 1

23
* * 22 21
G/B 20G/B 19
* * 18 17 16 15 14 13
Y
12
L
11 10
W
9
L
19
O
18
B
17
G/B
16 15 14 13 12 11
B/O
10
L/O
9
R
8
* 20
* * *19 18 17 16 15 (L) 14 13 12
Y
11
L
10 9
W
8
G

35
L/O
34
Y/B (G/B) (G/B) Y/B
33 32 31
R/B
30
G/O O
29
Y/O W/O
28 27
W
26
R G
25
G
24
R
28
O
27
B G/O
26
* *
25
BR
24
L
* 23 22
Y L
21
BR
20
* 30
* * G/O
29 28
L/O
* R/O27 26
W/O
25
R/O
* *24
L/B
23 22
R/B
21
G/O

* * * BR
* * R/O BR W G O Y Y/B Y
* G * * W
* R/B Y/O L
* * * * * * O BR

1 2 1 2 1 2 1 2 1 2 1 2
1 2
R/B R R/B L R/B Y/W R/B L/W R/B Y R/B W/B G BR