Checking wires to Engine Control Module (ECM)

• Connect test box to control module wiring harness. Refer to Test box, connecting for wiring test 

• Check wires between test box and 5-pin connector for open circuit according to wiring diagram.

Terminal 2+socket 102

Terminal 3 + socket 94

Terminal 4 + socket 103

Wire resistance: max. 1.5 Ω

• Also check wires for short circuit to each other.

Specified value: ∞ Ω

• Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data 
• Generate readiness code. Refer to Readiness code, generating 

If no malfunctions are found in the wires and there was voltage between terminal 1 + 5:

• Replace Motronic Engine Control Module (ECM) -J220-. Refer to Engine Control Module (ECM), replacing .

Checking secondary resistances 

• Check secondary resistances at terminal 4 between

Cyl. 1 + Cyl. 6,

Cyl. 3 + Cyl. 4,

Cyl. 2 + Cyl. 5.

Specified value: 3.6 to 4.4 k Ω

If specified values are not obtained:

• Replace Ignition Coil -N152-. Refer to Parts of the ignition (vehicles with engine code AFP), removing and installing  , item 7
• Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data 
• Generate readiness code. Refer to Readiness code, generating