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. Failure 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.
Coolant Temperature: ≥ 80 °C.
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 in INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING NO: Gather more Information from customer about the complaint
2	DISCONNECT: Intake Manifold Runner Position Sensor -G336- electrical connector IGNITION: ON CHECK: Intake Manifold Runner Position Sensor -G336- wiring connector pins 1 to 3 for voltage SPECIFIED VALUE: About 5.0 V IGNITION: OFF -- Was value obtained?	YES: Go to Step 3 INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING => 3 NO: Go to Step 4 INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING => 4
3	REMOVE: Engine Control Module - J623-. Refer to appropriate service information. CHECK: Intake Manifold Runner Position Sensor -G336- electrical connector terminal 2 to the Engine Control Module - J623- electrical connector T105 / 57. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω) -- Was value obtained?	YES: REPLACE: Intake Manifold Runner Position Sensor -G336-. Refer to appropriate repair information. GO TO: Step 5 in INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING NO: CHECK: wiring for open, high resistance, short or electrical connector for damage, corrosion, loose or broken terminals REPAIR: faulty wiring or connector GO TO: Step 5 in INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING
4	REMOVE: Engine Control Module - J623-. Refer to appropriate service information. CHECK: Intake Manifold Runner Position Sensor -G336- electrical connector terminal 1 to the Engine Control Module - J623- electrical connector T105 / 21. CHECK: Intake Manifold Runner Position Sensor -G336- electrical connector terminal 3 to the Engine Control Module - J623- electrical connector T105 / 97. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω) -- Was value obtained?	YES: REPLACE Engine Control Module -J623- Refer to appropriate repair information GO TO: Step 5 in INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING NO: CHECK: wiring for open, high resistance, short or electrical connector for damage, corrosion, loose or broken terminals REPAIR: faulty wiring or connector GO TO: Step 5 in INTAKE MANIFOLD RUNNER POSITION SENSOR -G336-, CHECKING
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