Hello everybody. This is my first post. I recently bought a 1996 Vanden Plas. I love this car. It runs a heck of a lot better than my 95 sable ever dreamt of running. that aside...recently my check engine light has come on. So I had a friend hook it up to his OBD computer thingy. It threw out three different codes. P1185, P1186, and P1188. So I looked up what these codes mean. P1185 O2 Sensor Heater Circuit Open - Hardware Fault P1186 O2 Sensor Heater Circuit Shorted- Hardware Fault
P1188 O2 Sensor Heater Circuit Resistance.

So...now what? I am assuming that the o2 sensor has gone bad? do I have more than one? If yes which do I replace? How do I find out which to replace? Where the heck are they? Any help would be greatly appreciated. I look forward to any help that anyone can give me.

 

Batman9731 - I have the same codes (p1185,p1186 and p1188) on my 96 xj6. Did you resolve your problem.....any advice would be greatly appreciated. Thanks, Jeff.