Join Now
International Automotive Technicians Network

P0161 Diagnostic Trouble Code Discussion for October 2005

Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0161
Help Request Posted
2000 Mercedes-Benz E320 4Matic 3.2L MIL Lamp on VIN: WDBJF82G1Y
P0161: O2 sensor Htr Ckt Bank2 Sensor 2. ... what I've been reading MAF is the most common cause of these codes. I checked my MAP, the readings are normal. I checked MAF voltages, idle is 1.43 volts (good according to my Vantage Pro), but at 2500 rpm, the voltage is a little low at 1.90 v (spec is 2....
October 01, 2005
2001 Ford E-250 Econoline 4.2L MIL Lamp on VIN: 1FTNE24281
P0161: B2S2 heater circuit problem. ... every time (P0141 & P0161). I have checked all circuits back to the pcm and all are good. I get battery voltage to the heaters with the key on engine off or running. I took the rear harness off and checked all circuits, uncovered the v-power splice and...
October 04, 2005
1998 GMC K3500 Sierra SL 7.4L Cuts out, Stall VIN: 1GDGC34J2W
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction. ... intermitant stalling at either idle or cruising at any speed. Codes are P0141, P0161, P1626, U1041. Failure records all indicate codes at idle with 0% tps. I have never been able to catch it stalling myself and the customer says it may not happen for up to...
October 13, 2005
2000 Dodge Ram 1500 Truck 5.9L MIL Lamp on VIN: 3B7HC13Z7Y
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction. This Dodge Truck came in with a transmission issue and was setting mutable transmission codes (no engine codes at this time). Replaced several defective solenoids in trans and the following codes reset PO748, P1765,PO743 and PO753 with one key cycle. Traced it...
October 18, 2005
2000 Dodge Ram 1500 Truck 5.9L MIL Lamp on VIN: 3B7HC13Z7Y
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction. This Dodge Truck came in with a transmission issue and was setting mutable transmission codes (no engine codes at this time). Replaced several defective solenoids in trans and the following codes reset PO748, P1765,PO743 and PO753 with one key cycle. Traced it...
October 21, 2005