Preparation For Test - Section 22
Preliminary work:
Diagnosis - Malfunction Memory: See Section 11. System Specific Notes
1. Ignition: OFF
2. Connect test cable with socket box to engine control module (N3/10) according to connection diagram
IMPORTANT: Connect Interior harness connector to connection 1 on test cable. Connect engine harness connector to connection 2 on test cable.
NOTE: The test program is divided into four sections:
23 SFI Test
24 Ignition System Test
25 EA System Test
26 CC System Test
The diagnostic module has been eliminated with the introduction of ME-SFI.
Note regarding "Connection" column:
The numbers indicated in parentheses, for example, => 1.0 (1.23) signify:
1 = Connector 1 on wiring diagram,
23 = Socket 23 on wiring diagram.
Special Tools:
Test Equipment:
Description Brand, model, etc.
Digital multimeter Fluke models 23, 77 III, 83, 85, 87
Engine analyzer Bear DACE
Herman Electronics
To Avoid Damage to the Ignition System:
- To avoid damage to the engine control module (N3/10), connect/disconnect the control module connectors only with the ignition: OFF.
- Do not connect a test lamp to Circuit 1 or 15 of the ignition coil.
- The high output side of the ignition system must carry at least 2 K Ohms of load (spark plug connector).
- To avoid damaging the ignition coils during individual testing, do not load the coil with more than 28 kV.
WARNING: High Voltage!
- Primary connections carry a voltage of up to 400 V. The iron core bracket of the ignition coils must always be connected to vehicle ground.
- Persons with pacemakers should not work on this type of ignition system.
CAUTION: Ensure that the engine and Ignition are OFF when connecting/disconnecting test equipment to a coil.
Figure 1 - Connection Diagram - Socket Box:
IMPORTANT: Connect interior harness connector to connection 1 on test cable. Connect engine harness connector to connection 2 on test cable.
Connector Layout - Engine Control Module - Connector 1 Interior:
Connector Layout - Engine Control Module - Connector 2 Engine:
