2003 Acura MDX check engine light

Tiny
BEANDERSON
  • MEMBER
  • 2003 ACURA MDX
2003 Acura MDX 6 cyl Automatic 109, 00 miles

I have a 2003 Acrua MDX and I have a check engine light that came on that has a code of P2237 do you know what that is?
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Monday, February 15th, 2010 AT 5:01 PM

1 Reply

Tiny
JCGUERIN
  • MEMBER
Faulty A/F Sensor Can
Cause Multiple DTCs
A faulty A/F sensor in a '03-05 MDX or '04-05 TL
can cause any or all of these DTCs to set:
" DTC P0134 [rear A/F sensor (bank 1, sensor 1)
heater system malfunction]
" DTC P0154 [front A/F sensor (bank 2,
sensor 1) heater system malfunction]
" DTC P2237 [rear A/F sensor (bank 1, sensor 1)
IP line high voltage]
" DTC P2240 [front A/F sensor (bank 2,
sensor 1) IP line high voltage]
To fix this problem, check the sensor wiring and
connections for damage. If the sensor circuit is
OK, and the DTC(s) come back after clearing
them and doing a short test-drive, replace the A/F
sensor. The replacement A/F sensors in Honda
parts stock are an improved version over the
original sensor. Bank 1 located at rear engine by firewall.
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Sunday, April 18th, 2010 AT 6:44 PM

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