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Old November 19th, 2019, 11:33   #5
SilverGhost
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Join Date: Mar 2005
Location: Back in So Flo - St Lucie
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Test Procedure
Step
Procedure

Result / Action to Take

1
l PERFORM: Preliminary Check to verify the customers complaint. Refer to → Chapter „Preliminary Check“.
– Was Complaint verified?

– YES:
t GO TO: Step 2 → Anchor.
– NO:
t GATHER more information from customer about the complaint.

2
l IGNITION: OFF.
l DISCONNECT: Differential Pressure Sensor -G505- harness connector.
l IGNITION: ON.
l CHECK: Differential Pressure Sensor -G505- harness connector terminals 1 to 2 for voltage.
l SPECIFIED VALUE: About 5.0 V.
l IGNITION: OFF.
– Was Value obtained?

– YES:
t GO TO: Step 4 → Anchor.
– NO:
t GO TO: Step 3 → Anchor.

3
l REMOVE: Engine Control Module - J623-. Refer to appropriate repair manual.
l CHECK: Differential Pressure Sensor -G505- harness connector terminal 1 to the Engine Control Module - J623- harness connector T94 / 13 for resistance.
l CHECK: Differential Pressure Sensor -G505- harness connector terminal 2 to the Engine Control Module - J623- harness connector T94 / 37 for resistance.
l SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
– Were Values obtained?

– YES:
t GO TO: Step 4 → Anchor.
– NO:
t PERFORM: Visual Inspection of wiring and component.
t CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
t REPAIR: Faulty wiring or connector.
t GO TO: Step 5 → Anchor.

4
l REMOVE: Engine Control Module - J623-. Refer to appropriate repair manual.
l CHECK: Differential Pressure Sensor -G505- harness connector terminal 3 to the Engine Control Module - J623- harness connector T94 / 15 for resistance.
l SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
– Was Value obtained?

– YES:
t REPLACE: Differential Pressure Sensor -G505-. Refer to appropriate repair manual.
t GO TO: Step 5 → Anchor.
– NO:
t PERFORM: Visual Inspection of wiring and component.
t CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
t REPAIR: Faulty wiring or connector.
t GO TO: Step 5 → Anchor.

5
l Final Procedure
l Perform a road test to verify repair.
– Does the original DTC return?

– YES:
t CHECK: Engine Control Module -J623- harness connector for any damaged, pushed-out pins.
t REPAIR: As necessary.
t If all electrical connections are OK:
t REPLACE: Engine Control Module -J623-. Refer to appropriate repair manual.
t Clear the DTC’s. Refer to → Chapter „Diagnostic Mode 04 – Erase DTC Memory“.
t Repair is complete. Generate Readiness Code. Refer to → Chapter „Readiness Code“.
t Return vehicle to Customer.
– NO:
t Perform the diagnostic procedure for any DTC’s.
t If no DTC’s return, the repair is complete.
t Return vehicle to customer.

Last edited by SilverGhost; November 19th, 2019 at 11:39.
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