Intake Manifold Runner Control Valve - N316-, Checking

General Description

The intake manifold runner valve(s) is mounted on a common shaft and actuated by a vacuum cell. The partial vacuum required for actuation is supplied by the Intake Manifold Runner Control Valve -N316-. The Engine Control Module -J623- activates the Intake Manifold Runner Control Valve -N316- on the basis of a characteristic map.

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

NOTE:

Note the CA1 and CMC both use the ECM connector T105a, and the CA2 uses the ECM connector T105b. Both connectors are identical except for the suffix of "a" or "b". For simplicity, please use the suffix "a".

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 Manifold Runner Control Valve - N316-, CHECKING - 2 . -- NO: GATHER more information from customer about the complaint.
2	IGNITION: OFF. DISCONNECT: Intake Manifold Runner Control Valve -N316- harness connector. CHECK: Intake Manifold Runner Control Valve -N316- component connector terminals 1 to 2 for resistance. SPECIFIED VALUE: 5 - 35 Ω (@ approx. 20° C). -- Was Value obtained?	-- YES: GO TO: Step 3 Intake Manifold Runner Control Valve - N316-, CHECKING - 3 . -- NO: REPLACE: Intake Manifold Runner Control Valve -N316-. Refer to appropriate Service Information. GO TO: Step 5 Intake Manifold Runner Control Valve - N316-, CHECKING - 5 .
3	IGNITION: ON. CHECK: Intake Manifold Runner Control Valve -N316- harness connector terminal 1 to ground for voltage. IGNITION: OFF. SPECIFIED VALUE: Battery voltage. -- Was Value obtained?	-- YES: GO TO: Step 4 Intake Manifold Runner Control Valve - N316-, 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 5 Intake Manifold Runner Control Valve - N316-, CHECKING - 5 .
4	REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information. CHECK: Intake Manifold Runner Control Valve -N316- harness connector terminal 2 to the Engine Control Module - J623- harness connector T105a / 62 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Was Value obtained?	-- YES: TIP: The Intake Manifold Runner Control Valve -N316- may fail under loaded operation; please swap a known good Intake Manifold Runner Control Valve -N316- prior to continuing to the next step. GO TO: Step 5 Intake Manifold Runner Control Valve - N316-, CHECKING - 5 . -- 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 5 Intake Manifold Runner Control Valve - N316-, CHECKING - 5 .
5	Final Procedure Perform a road test to verify repair. -- Does the original DTC return?	-- YES: CHECK: Engine Control Module -J623- harness connector for any damaged, pushed-out pins. REPAIR: As necessary. If all electrical connections are OK: REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information. Clear the DTC's. Refer to DIAGNOSTIC MODE 04 -- ERASE DTC MEMORY -->. Repair is complete. Generate Readiness Code. Refer to READINESS CODE . Return vehicle to Customer. -- NO: Perform the diagnostic procedure for any DTC's. If no DTC's return, the repair is complete. Return vehicle to customer.