Preparation For Test
Preliminary work:
Diagnosis - Diagnostic Trouble Code (DTC) Memory [] 11
1. Ignition: OFF
2. Fuse on relay module (K40) in order. Relay module in order.
Relay module plug connected.
3. Disconnect IFI control module (N3/7) connector.
4. Connect socket box with test cable to IFI control module (N3/7).
Electrical wiring diagrams
Electrical Troubleshooting Manual, Model 210, Volume 1
Special Tools
Conventional tools, test equipment
Description Brand, model, etc.
Multimeter 1) Fluke models 23, 83, 85, 87
Engine analyzer 1) Bear DACE
Y - fitting 117 078 01 45
1) Available through the MBNA Standard Equipment Program.
Figure 1
Y - fitting
Connection Diagram - Socket box
Figure 2
001 IFI control module connector
003 Multimeter
050 Socket box (126-pole)
052 Test cable
N3/7 IFI control module
Connector Layout - IFI Control Module (N3/7)
Figure 3
1 -
2 -
3 Fuel temperature sensor in electrohydraulic shut off actuator, socket 4
4 Sensor ground GND
5 CAN data bus (socket L)
6 IFI accelerator pedal position sensor (potentiometer socket 6)
7 Signal from ETS control module
8 CC switch (accelerate/set, socket 4)
9 Fuel rack position sensor (socket 7)
10 Fuel rack position sensor (socket 1)
11 Resonance intake manifold switchover valve
12 Starter lock-out/backup lamp switch
13 -
14 TN-signal
15 IFI accelerator pedal position sensor (CTP switch, socket 4)
16 -
17 CHECK ENGINE MIL
18 Ground W16/5 - W16/6 (electronics)
19 Ground W16/5 - W16/6 (electronics)
20 CKP sensor (socket 1)
21 EGR lifting sender (B28/3)
22 Pressure sensor (socket 1)
23 ECT sensor (socket 1)
24 IFI accelerator pedal position sensor (CTP switch, socket 3)
25 VSS from ABS control module
26 Terminal HRL from relay module K40 (connector E, socket 3)
27 Stop lamp switch (connector 1, socket 2)
28 Sensor ground
29 IFI accelerator pedal position sensor (potentiometer socket 1)
30 CC switch (control contact, socket 6)
Connector Layout - IFI Control Module (N317)
Figure 4
31 Stop lamp switch (connector 2, socket 2)
32 -
33 A/C compressor shut-off signal (N22, socket 10)
34 Upshift delay switchover valve (socket 1)
35 EGR valve vacuum transducer (Y31/1)
36 Fuel quantity actuator (socket 2)
37 Voltage supply, circuit 87U, unfused (relay module K40, connector E, socket 7)
38 CC switch (decelerate/set, socket 3)
39 IFI accelerator pedal position sensor (potentiometer, socket 5)
40 IAT sensor (socket 2)
41 CAN data bus (socket H)
42 CC switch (resume, socket 5)
43 IF electrohydraulic shut-off actuator (socket 3)
44 CC switch (off, socket 1)
45 Pressure sensor (socket 3)
46 Fuel rack position sensor (IFI) (socket 6)
47 Circuit 15E
48 -
49 Modulating pressure switchover valve (AT/CC) (socket 1)
50 Diagnostic signal (to X11/4, socket 4)
51 Resonance intake line switchover valve (socket 1)
52 -
53 Pressure control flap vacuum transducer (socket 1)
54 Fuel quantity actuator (IFI) (socket 2)
55 Voltage supply, circuit 87U, unfused (relay module K40, connector E, socket 7)