Question about 2005 Pontiac Grand Prix
YOU HAVE TO REMOVE RIGHT SIDE HEADLIGHT HOUSING TO GET TO HORN.
Posted on Aug 21, 2010
In front of the radiator looks like a little square cylinder
Posted on Aug 21, 2010
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Posted on Jan 02, 2017
On the 06 Vibe the horn is located just to the right of center, almost below the hood latch, in front of the radiator. It looks like a small round speaker...
check to make sure the wire is plugged in, it can come lose or even fall out. it is easy to check and fix.
If that does not work, my best guess would be that either the horn is blown or the wiring is messed up.
Posted on Apr 02, 2009
Right side of engine compartment....it has a small round cap, usually black
check your owners manual it will show a diagram of the whole underhood layout
Posted on Nov 13, 2009
DTC P0641 The powertrain control module (PCM) provides a 5-volt reference to the
The throttle position (TP) sensor 1
The accelerator pedal position (APP) sensor 2
The engine cooling fan speed sensor
The AC pressure sensor
The fuel tank pressure (FTP) sensor
The oil pressure sensor (OPS)
The PCM monitors voltage on the 5-volt reference circuit. If the voltage is higher or lower than required, DTC P0641 will set.
Conditions for Setting the DTC
The PCM detects a voltage that is higher or lower than required on the 5-volt reference circuit. The above condition is present for 1 second. Action Taken When the DTC Sets The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.
Conditions for Clearing the MIL/DTC The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail. A current DTC, Last Test Failed, clears when the diagnostic runs and passes. A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic. Clear the MIL and the DTC with a scan tool.
Yes i can be dangerous, depending which issues mentioned above has triggered the code such as a faulty gas peddle position sensor. the code can also cause a reduced engine power to activate.
Thank you for using Fixya and best advice is to have the dealer address these issues. A tech 2 scanner would be needed to address the P0641 DTC code.
Posted on Mar 19, 2010
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