Intake Manifold Runner Position Sensor -G336-, Checking

Function

The Engine Control Module -J623- uses the Intake Manifold Runner Position Sensor -G336- signal to calculate a correction value for the charge air pressure. Evaluation of the signal gives consideration to the influence of temperature on the density of the charge air. In the event of signal failure, the Engine Control Module -J623- employs a fixed, substitute value for calculation purposes. This may lead to reduced engine output.

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 Auto. Transmission, ensure Selector Lever position is in "P".
Vehicles with Man. Transmission, ensure Shifter Lever position is in "N" with Parking Brake applied.
Observe all safety precautions: SAFETY PRECAUTIONS .
View clean working conditions: CLEAN WORKING CONDITIONS .
For Hybrid vehicles refer to: HIGH VOLTAGE SYSTEM GENERAL WARNINGS .

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. NO: GATHER more information from customer about the complaint.
2	DISCONNECT: Intake Manifold Runner Position Sensor -G336- harness connector. IGNITION: ON. CHECK: Intake Manifold Runner Position Sensor -G336- harness connector terminals 1 to 3 for voltage. SPECIFIED VALUE: About 5.0 V. IGNITION: OFF. -- Was Value obtained?	YES: GO TO Step 3. NO: GO TO Step 4.
3	REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information. CHECK: Intake Manifold Runner Position Sensor -G336- harness connector terminal 2 to the Engine Control Module - J623- harness connector T94 / 38 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Was Value obtained?	YES: REPLACE: Intake Manifold Runner Position Sensor -G336-. Refer to appropriate Service Information. GO TO: Step 5. NO: 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.
4	REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information. CHECK: Intake Manifold Runner Position Sensor -G336- harness connector terminal 1 to the Engine Control Module - J623- harness connector T60 / 37 for resistance. CHECK: Intake Manifold Runner Position Sensor -G336- harness connector terminal 3 to the Engine Control Module - J623- harness connector T60 / 14 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	YES: REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information. GO TO: Step 5. NO: 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.
5	Final Procedure Perform a road test to verify repair. Do any DTC's return:	YES: Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY . Perform the diagnostic procedure for that DTC. NO: Repair is complete. Generate readiness code. Refer to READINESS CODE . Return vehicle to Customer.