Table B-1 Fuel Injector Circuit Check - Suzuki Wagon R Plus RB310 Service Manual

6-2-150 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
DTC Troubleshooting
Step
1 Was "Engine and Emission Control System
Check" performed?
2 Is DTC P2227 set?
3 MAP sensor check
1) Check MAP sensor and its circuit referring
to "DTC P0107/P0108 Manifold Absolute
Pressure Low Input/High Input".
Is check result satisfactory?

Table B-1 Fuel Injector Circuit Check

9
WHT/BLU
BLK/YEL
1
60A 20A
80A
E23
7 6 5 4 3
17 16 15 14 13 12 11
27 26 25 24 23 22 21
34 33 32 31
1. Relay box
2. Main relay
3. ECM
Action
BLU/BLK
8
2
BLK/YEL
BLK/RED
BLK/YEL
BLK/RED
E22
2 1 7 6 5 4 3
10 9 8 19 18 17 16 15 14 13 12 11
20 19 18 27 26 25 24 23
30 29 28 35 34 33 32 31
4. No.1 injector 7. No.4 injector
5. No.2 injector 8. "IG COIL" fuse
6. No.3 injector 9. Ignition switch
Yes
Go to Step 2.
Go to Step 3.
Substitute a known-good
ECM and recheck.
3
BLK/WHT E21-28
BLU/BLK
E23-15
BLK/RED E21-6
BLK/RED E21-5
4
E22-7
BLU/WHT
5
E22-6
BLU/YEL
6
E22-5
BLU/RED
7
E22-4
BLU/ORN
E21
2 1 6 5 4 3 2
10 9 8 16 15 14 13 12 11 10 9 8
22 21 20 27 26 25 24 23 22 21 20 19
30 29 28 35 34 33 32 31 30
Go to "Engine and Emis-
sion Control System
Check".
Substitute a known-good
ECM and recheck.
MAP sensor or its circuit
malfunction.
E22-1
BLK
E23-2 BLK/YEL
E23-1
BLK/YEL
5V
12V
1
7
18 17
29 28
No