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Heated O2 Sensor Bank 1 Sensor 3


jinxed45

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Diagnosed

P0146 History - Heated O2 Sensor Circuit Insufficient - Activity: Bank 1 Sensor 3

Should I replace all the O2 sensors?

While we're at it:

P0603 History - Control Module Long Term Memory Reset

IPC:

B1552 History - Keep Alive Memory (KAM) Error

U1255 Current - Class 2 Communication Malfunction (Serial Data Line Malfunc.)

RSS:

C1738 Current - Exhaust Solenoid Valve Short to GND

C1783 Current - ICCS2 DL Left Output Short Circuit to GND

C1785 Current - ICCS2 DL Right Output Short Circuit to GND

PZM:

B0533 History - Fuel Sensor Open/Shorted to B+

B1552 History - Keep Alive Memory (KAM) Error

B1558 History - BCM EPROM Check Sum Error

So that's where I'm at.. I haven't tuned up the engine since 100,000 miles, but I'm planning on doing so very soon. And I want my Cadillac in perfect condition, therefore I would have to clear these up. The history codes come back even after I clear the codes, I don't see why if they're history?!

Thanks for any help, I really need it.

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Bank 2 is left (forward) side. Bank 1 is right (firewall) side. Sensor 1 is on the manifold. Sensor 2 is pre-cat and sensor 3 is aft-cat. Bank 1 only has 1 sensor (on the manifold).

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do you have long starts? the reason i ask is that i have the B0533 History - Fuel Sensor Open/Shorted to B+ problem too and my gas gage isnt right below 1/2 tank and i thought it would have something to do with my hard starting.

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