P0053 Diagnostic Trouble Code Discussion for September 2008
Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Resistance
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| Help Request | Posted | |
| 2004 Ford Focus LX 2.3L MIL Lamp on VIN: 1FAFP33Z54 P0053: b1s1 heater resistance high or low. checked heater resistance 5 ohms, checked vpwr, sigrtn, ho2s signal, heater all back to pcm. amps will not change ho2s1 .167 the other 2 are .560. i think im looking at another pcm |
September 22, 2008 |
