20 Most Recent 2009 Pontiac Solstice Convertible Questions & Answers


What door lock doesn't always work ? One or all of them . This is a complex set up for these door locks ! The switch is an input to the BCM - body control module . There is logic involved in the microprocessor , there are relays built in to the BCM ! Could have a DTC - diagnostic trouble code stored in the BCM ! Could be a bad connection at the BCM or master window switch ! A bad ground !
The power door lock system consists of the following components:
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Body control module (BCM)


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DOOR LKS fuse


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Driver door lock actuator


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Driver door lock switch


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GMLAN serial data link


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Keyless entry transmitter


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Passenger door lock actuator


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Passenger door lock switch


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Remote control door lock receiver (RCDLR)


The DR LCK fuse supplies battery voltage to the body control module (BCM) for the power door lock system. The BCM supplies and monitors a reference voltage to the driver and passenger door lock switches through the door lock switch lock/unlock signal circuit. Each door lock switch receives ground at G300 which is also the ground for the door lock and unlock relays located in the BCM. When a door lock switch is placed in the lock position, the reference voltage is switched to ground and the BCM senses 0.0 volts on the door lock/unlock signal circuit. When a door lock switch is placed in the unlock position, the reference voltage is switched to ground through a 1.5k ohm resistor that is internal to each of the door lock switches and the BCM senses approximately 2.9 volts on the door lock/unlock signal circuit. The BCM interprets what position the activated door lock switch was placed in based on the voltage drop.
The BCM, upon receipt of a lock or unlock switch signal, will switch the appropriate door lock/unlock relay coil control circuit to ground causing the appropriate door lock/unlock relay to energize. With the relay energized, voltage is applied to the door lock actuator control circuit causing the door to either lock, or unlock depending on what command was received from the power door lock switch or remote control door lock receiver (RCDLR). When a power door lock/unlock relay is not energized, the switch contacts are normally grounded through the BCM which provides ground to the appropriate door lock actuator for the lock/unlock function being performed. The power door lock/unlock functions are performed by reversing the flow of voltage through the door lock actuator control circuits. The BCM has three internal drivers for the power door lock system. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked separately from the passenger door. For additional information concerning keyless entry, refer to Keyless Entry System Description and Operation.
This is one you may want to take to dealer or some other ASE certified repair shop ! To do this right you need a Tech 2 scan tool !
Ignition ON, observe the scan tool Door Lock Switch parameter while using the driver and passenger door lock switches. The parameter should change from Idle to Lock and Unlock.
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If the value does not change, refer to Door Lock Switch Malfunction.

Command the doors to LOCK and UNLOCK with the scan tool, the door lock actuators should LOCK and UNLOCK when changing between the commanded states.
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If one or more doors do not LOCK or UNLOCK, refer to Door Lock Malfunction.

2009 Pontiac... | Answered on Oct 09, 2019


check voltage on battery with a multimeter
pull cables off, inspect for any 'crud' on terminals/posts, cable clamps, and exposed wiring, use a wire bristle brush to scrub clean and expose fresh metal surface

Pontiac Solstice... | Answered on Jun 07, 2019


Google it/utube /forum Pontiac

Pontiac Solstice... | Answered on Nov 04, 2017


If check engine light is on now get the codes.even if it's not on get codes. If it is not storing them the computer may be at fault. First thing i would do though is take the battery terminals off and clean them. A battery with a shorting out cell could also do it.

Pontiac Solstice... | Answered on Jun 02, 2017


the sensor is part of the latch so that will have to be replaced to fix it. Although water has been known to seep into the latch through the key hole (bad gasket) and fixes itself when it drys out.

Pontiac Solstice... | Answered on Dec 10, 2013


The tension you are feeling is probably the pedal spring under the dash to pull the cable back.. Open the bonnet and if you see a cable in the fire wall where the clutch pedal the you have a cable operation and it will need replacing. If you see a master cylinder next to the brake master cylinder then you have hydraulic system and it have to be bled or the master cylinder replaced Talk to a reputable service shop to have it fixed.

Pontiac Solstice... | Answered on Oct 27, 2013


YES IF U PLAN ON FIXING IT PROPERLY

Pontiac Solstice... | Answered on Jul 21, 2012

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