20 Most Recent 2006 Pontiac Grand Prix Questions & Answers


Check coolant level. If necessary, additional cooling fluid. It is possible that the air inside the cooling system.

2006 Pontiac... | Answered on Jul 25, 2019


Charging System Failure
Refer to Charging System Description and Operation

Electrical Power Management (EPM) Overview
The EPM system is designed to monitor and control the charging system and send diagnostic messages to alert the driver of possible problems with the battery and generator. This EPM system primarily utilizes existing on-board computer capability to maximize the effectiveness of the generator, to manage the load, improve battery state-of-charge (SOC) and life, and minimize the system's impact on fuel economy. The EPM system performs three functions:
• It monitors the battery voltage and estimates the battery condition.
• It takes corrective actions by adjusting the regulated voltage.
• It performs diagnostics and driver notification.
The battery's condition is estimated during key-off and during key-on. During key-off the SOC of the battery is determined by measuring the open-circuit voltage. The SOC is a function of the acid concentration and the internal resistance of the battery, and is estimated by reading the battery open circuit voltage when the battery has been at rest for several hours.
The SOC can be used as a diagnostic tool to tell the customer or the dealer the condition of the battery. Throughout key-on the algorithm continuously estimates SOC based on adjusted net amp hours, battery capacity, initial SOC, and temperature.
While running, the battery's degree of discharge is primarily determined by a battery current sensor, which is integrated to obtain net amp hours.
In addition, the EPM function is designed to perform regulated voltage control (RVC) to improve battery SOC, battery life, and fuel economy. This is accomplished by using knowledge of the battery's SOC and temperature to set the charging voltage to an optimum battery voltage level for recharging without detriment to battery life.
The Charging System Description and Operation is divided into 3 sections. The first section describes the charging system components and their integration into the EPM. The second section describes charging system operation. The third section describes the instrument panel cluster operation of the charge indicator, driver information center messages and voltmeter operation.

Charging System Failure
The BCM and the ECM/PCM will send a class 2 message to the IPC for the CHARGING SYSTEM FAILURE message to be displayed. It is commanded ON when a charging system DTC is a current DTC. The message is turned off when the conditions for clearing the DTC have been met.

You need to have a full vehicle scan done. Not just engine code's . An to do this you need a professional scan tool , not auto zone or advance etc.. Your best bet , take it to a qualified repair shop.

Your charging system is computer controlled . Do you know what DTC'S - diagnostic trouble code's are ? This are all associated with the charging system inone way or another .
DTC B1327
DTC B1328
DTC B1516
DTC P0560
DTC P0562
DTC P0563
DTC P0615
DTC P0621
DTC P0622


https://www.motor.com/magazinepdfs/042010_09.pdf

2006 Pontiac... | Answered on Oct 05, 2018


What engine ? 3.8 or 5.3 L
DTC P0128: Engine Coolant Temperature (ECT) Below Thermostat Regulations Temperature

DTC P0411 : Secondary Air Injection (AIR) System Incorrect Air Flow Detected

DTC P2440 : Secondary Air Injection (AIR) Valve Stuck Open

DTC P2431 : Secondary Air Injection (AIR) System Pressure Sensor Performance
Circuit/System Description
The secondary air injection (AIR) system aids in the reduction of hydrocarbon emissions during a cold start. The system forces fresh filtered air into the exhaust stream in order to accelerate the catalyst operation. An electric air pump, the secondary AIR injection pump, provides filtered air on demand to the AIR control solenoid valve/pressure sensor assembly. The AIR control solenoid valve/pressure sensor assembly controls the flow of air from the AIR pump to the exhaust manifold. The AIR solenoid valve relay supplies the current needed to operate the AIR solenoid valve/pressure sensor assembly. A pressure sensor is used to monitor the air flow from the AIR pump. The powertrain control module (PCM) supplies the internal pressure sensor with a 5-volt reference, an electrical ground, and a signal circuit.
The AIR diagnostic uses 3 phases to test the AIR system:
DTCs P0411 and P2430 run during Phase 1
DTCs P2430 and P2440 run during Phase 2
DTC P2444 runs during Phase 3
During phase 1, both the AIR pump and the solenoid valve are activated. Normal secondary air function occurs. Expected system pressure is 8-10 kPa above BARO.
During phase 2, only the AIR pump is activated. The solenoid valve is closed. Pressure sensor performance and solenoid valve deactivation are tested. Expected system pressure is 15-20 kPa above BARO.
During phase 3, neither the AIR pump nor the solenoid valve is activated. AIR pump deactivation is tested. Expected system pressure equals BARO.
In all 3 phases, testing is accomplished by comparing the measured pressure against the expected pressure. The PCM can detect faults in the AIR pump, AIR solenoid valve/pressure sensor assembly, and the exhaust check valve. The pressure sensor can also detect leaks and restrictions in the secondary AIR system plumbing.

Chevrolet Malibu P2432 Secondary Air Injection System

2006 Pontiac... | Answered on Jan 29, 2018


Rather then rigging it , fix it right ! The blower motor could be bad . Testing the electrical circuit , checking current draw , voltage drop . etc.... Hooking up a light switch isn,t going to keep it on if parts are failing . More then likely the blower motor control processor is going bad . The blower motor is electronically controlled .
HVAC Blower Motor Circuit

https://www.1aauto.com/2006--pontiac-grand-prix-blower-motor-module-for-models-with-automatic-temperature-control/i/1ahbr00026?f=489143&y=2006&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping%20Campaign%20F-L%20-%20Medium&utm_term=1100309270240&utm_content=F-L

2006 Pontiac... | Answered on Jan 14, 2018


The usual cause is a malfunctioning electric actuator on the air mix flapper valve in the HVAC box.

2006 Pontiac... | Answered on Dec 03, 2017


You have bad connections/switches all over the place. i would go over all of them with chemical cleaners and also work the heck out of all switches to make sure they open and close properly. You do this correctly and you will have eliminated all false alarms

2006 Pontiac... | Answered on Sep 12, 2017


no
it will because there is air in the system or the master cylinder is not operational
if you have a leak in a hose or steel pipe , you will see the oil on the ground or on the suspension parts underneath

2006 Pontiac... | Answered on Aug 08, 2017


Under the hood is a black box .take off the cover and turn it over and it should have a diagram of which fuse/relay controls what.

2006 Pontiac... | Answered on Apr 11, 2017


P0606
Control Module Internal Performance

P0601
Control Module Read Only Memory (ROM)
ECM, PCM
U0107
Throttle Actuator Control (TAC) Module Serial Data Circuit
ECM, PCM

The throttle actuator control (TAC) module and the powertrain control module (PCM) communicate using a dedicated serial data circuit. This serial data circuit is separate from any other serial data circuit on the vehicle. Accurate transmitting and receiving of serial data requires not only good circuit integrity but also adequate system voltage. This diagnostic monitors the accuracy of the serial data transmitted between the TAC module and the PCM. If the PCM detects a loss of data or invalid data, or if the throttle limit is exceeded while operating in the Reduced Engine Power mode, DTC U0107 sets.

Your best bet is going to be to take your vehicle to a GM dealer ! Cadillac , Buick

2006 Pontiac... | Answered on Apr 05, 2017


Water pump may be bad,

2006 Pontiac... | Answered on Mar 26, 2017

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