Intake Flap Motor - V157-, Checking: Notes

NOTE:

The Intake Flap Motor (V157) Was Subsequently Replaced As A Running Change By The Intake Manifold Runner Control Valve (N316). A Time Stamp Was Not Provided. Check Your Vehicle And Appropriate Wiring Diagram For Applicability.

General Description

The Intake Flap Motor -V157- Is Controlled By The Engine/Motor Control Module -J623- To Increase The EGR Rate By Reducing The Overpressure In The Intake Manifold.

Special Tools And Workshop Equipment Required

Multimeter.
Wiring Diagram.
Scan Tool.

Test Requirements

Fuses OK.
Battery voltage OK.
Switch OFF all electrical and electronic accessories.
Vehicles with automatic transmission, ensure the selector lever position is in "P".
Vehicles with manual transmission, ensure the shifter lever position is in "N" with the parking brake applied.
Observe all safety precautions: SAFETY PRECAUTIONS .
View clean working conditions: CLEAN WORKING CONDITIONS .

Test Procedure

Step	Procedure	Result / Action to Take
1	PERFORM: Preliminary Check to verify the customers complaint. Refer to PRELIMINARY CHECK . -- Was Complaint verified?	-- YES: GO TO: Step 2 Intake Flap Motor - V157-, CHECKING - 2 . -- NO: GATHER more Information from customer about the complaint.
2	IGNITION: OFF. REMOVE: Intake Flap Motor -V157- far enough so that the harness connector terminals are accessible. DISCONNECT: Intake Flap Motor -V157- harness connector. IGNITION: ON. CHECK: Intake Flap Motor -V157- harness connector terminals 1 to 3 for voltage. CHECK: Intake Flap Motor -V157- harness connector terminal 3 to battery voltage for voltage. IGNITION: OFF. SPECIFIED VALUE: Battery voltage. -- Were Values obtained?	-- YES: GO TO: Step 3 Intake Flap Motor - V157-, CHECKING - 3 . -- NO: PERFORM: Visual Inspection of wiring and component. CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals. REPAIR: Faulty wiring or connector. GO TO: Step 4 Intake Flap Motor - V157-, CHECKING - 4 .
3	REMOVE: Engine/Motor Control Module -J623-. Refer to appropriate service information. CHECK: Intake Flap Motor -V157- harness connector terminal 2 to the Engine/Motor Control Module -J623- harness connector T60 / 6 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Was Value obtained?	-- YES: REPLACE: Intake Flap Motor -V157-. Refer to appropriate service information. GO TO: Step 4 Intake Flap Motor - V157-, CHECKING - 4 . -- NO: PERFORM: Visual Inspection of wiring and component. CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals. REPAIR: Faulty wiring or connector. GO TO: Step 4 Intake Flap Motor - V157-, CHECKING - 4 .
4	Refer to the Final Procedure Below