Skip the auto shop - Our mechanics make house calls

Q: DTC Help Request

asked by on

'02 Saturn Vue (V6/AWD/5 Spd AT). Scanned ECM, TCM, BCM, SDM & EPS for codes. One code found U1096 with Service Wrench light illuminated (Lost communication with IPC). IPC Connector resistance to ground (B4) is less than 1 ohm. IPC Connector voltage (B2) is 12.3 V. IPC functions as it should (Both while running and KOEO bulb check). Anyone seen this before?

My car has 230000 miles.
My car has an automatic transmission.

A: You might have a problem with fretting corr...

You might have a problem with fretting corrosion in the connectors of the modules of the vehicle. There is a technical bulletin out for your Saturn VUE: 09-06-03-004D, dated December 2010 for corrosion in the small connector pins of the modules throughout the vehicle. The fix for this is to disconnect the battery. Then disconnect each module, including the ECM, TCM, BCM, SDM, EPS, and any other modules having issues then apply a thin coat of dielectric lube to the connector seals and each pin and socket. Once all are done and securely reconnected, reconnect the battery and retest systems. Clear any codes and road test to relearn the idle. If you need assistance with this, consider YourMechanic, as a certified technician can further diagnose the trouble codes and help you fix this accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is it possible to fry a new battery through faulty installation? 2009 Mazda 6

Hello - it is NOT likely your spouse damaged the battery during the swap. Far more often, the electrical energy in the battery would fry wiring or other electrical components if something is mis-connected. More than likely, the battery swap...

Q: Honda N WGN 660 5cc japanese frequent limp home mode

Hello, thanks for writing in about your Honda N WGN. A likely possibility related to the misfiring may be that the car's computer may have tried to recalibrate the fuel supply as a result of the faulty throttle control relay...

Q: Placing a brake fluid on Corolla Hatchback

Modern cars have ABS systems and they are often cross-linked and a lot of times to really bleed the brake fluids. You'll need a dealer-level scan tool that operates the ABS system that will tell you what to do. It...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.