jim Posted August 26, 2007 Report Share Posted August 26, 2007 Does Anybody know what this code is about (P1153) My scanner only goes to P0999. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted August 26, 2007 Report Share Posted August 26, 2007 P1153 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1 This is the oxygen sensor high on the manifold against the firewall. Probably the wire or connector is loose. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
jim Posted August 26, 2007 Author Report Share Posted August 26, 2007 P1153 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1 This is the oxygen sensor high on the manifold against the firewall. Probably the wire or connector is loose. Thanks for the reply, I'll check that! Link to comment Share on other sites More sharing options...
KevinW Posted August 27, 2007 Report Share Posted August 27, 2007 P1153 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1 This is the oxygen sensor high on the manifold against the firewall. Probably the wire or connector is loose. There are other codes that would suggest circuit integrity problems. I understand that 'Insufficient Switching' is a sensor performance characterisation, possibly related to silicon contamination or normal wear and tear. It is important to note that some aftermarket oxygen sensors exhibit performance characteristics that differ significantly from the OEM parts. Also, I believe the bank closest to the firewall is #1 (since cylinder #1 is located there, near the coil pack). Bank #2 would be the front bank. ___________________________________________________ Link to comment Share on other sites More sharing options...
Ranger Posted August 27, 2007 Report Share Posted August 27, 2007 Bank 2 Sensor 1 is on the FRONT (left) manifold. You do not need a scanner. Use the on board diagnostics. Simultaneously press and hold the OFF & WARMER buttons. DTC's will be displayed. Answer yes to the prompts with the HIGH FAN button and no with the LOW FAN button. Get the DTC definitions here. http://myweb.accessus.net/~090/dtcobd2.html Link to comment Share on other sites More sharing options...
Logan Posted August 27, 2007 Report Share Posted August 27, 2007 I think POx codes are FED OBDII codes. P1x codes are manufactuers codes. And there are a bunch of P1 codes on Cadillacs. The Northstar is unique in the GM family of V engines. On Northstar based engines: Bank 1 is rear / right. Bank 2 is front / left. Logan Diagnostic LLC www.airbagcrash.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
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