Chevrolet Impala - Popular Questions, Answers, Tips & Manuals - Page 3
2008 Chevy Impala. What do you think needs to be replaced exactly?
Question edited for clarity.
Question moved to category.
If you have to shake it to get it to work, you have a loose connection or a bad, or corroded connection in a plug to the box. You just have to find it. I am not sure what box it is, but the Fuse Box and the Engine Control Module, should be bolted down..
2010 Chevrolet Impala ABS issues....
if abs flickered hook up scanner and get code ---new hubs dont mean free from defects or properly installed ---also check the abs connectors for damage or corrosion
Why do doors unlock but can't be locked?
Professional Auto-Tech Expert writes
- Jeff Armer Mar 29, 2022
- Won't lock ? power door locks ? with key fob,door switches ? more info.
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Jeff Armer Mar 29, 2022
Power locks are controlled by door modules and BCM, hook up a scan tool an check for codes .
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Jeff Armer Mar 29, 2022
Could be door lock relay problem .
DTC B3125
Circuit/System Description
When the door lock switch is place in to the LOCK position, ground is applied through the switch to the body control module (BCM). The BCM then applies a voltage through the door lock relay control circuit to the coil side of the lock relay in the body electrical center (BEC). The relay then engages and applies voltage to all the door lock assemblies.
DTC B3135 00: All Door Lock Circuit
..
Where do I find the rcdlr module in 2006 Chevy impala
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwiujvCRl5b_AhVWhIkEHfmpCLUQFnoECBMQAQ&url=https%3A%2F%2Fwww.fixya.com%2Fcars%2Ft29857749-removed_replace_rear_fog_light_switch&usg=AOvVaw2ayt80bTogb4ubBM8fB4F7
Why did I/P lights and heat stop working?
Are these the lamps not working?
Interior Lamps Dimming
The second group of interior lighting includes lamps which may be dimmed. This group uses a combination of class 2 controlled illumination and incandescent lamps:
• Ashtray lamp
• Door switches and window switches
• Fog lamp switch
• HVAC control head assembly
• Outside rear view mirror switches
• Radio
• Steering wheel controls
• Instrument panel cluster (IPC)
• Traction control switch
• Headlamp switch
• Hazard switch
• Heated seat switch
• The rear view mirror lamps
• Surveillance mode switch (SEO, 9C1/9C3)
The RH instrument panel (I/P) fuse block supplies battery positive voltage to both the coil and normally open switch contacts of the park lamp relay. When the body control module (BCM) energizes the park lamp relay, current flows from the park lamp relay switched contacts through the REAR PARK LP fuse to the I/P dimming switch. When dimming is selected, by moving the I/P dimming switch, all incandescent back lighting lamps (see schematics) and the BCM are provided with a variable voltage through the instrument panel lamp supply voltage #1 circuit. The incandescent back lighting lamps are then grounded at G201, G203 and G302. The BCM then applies a message signal to the class 2 circuit to the IPC and radio. The class 2 displays then dim to the level set by the I/P dimmer switch. When the I/P dimmer switch is moved from MIN to MAX, all class 2 displays and all incandescent back lighting respond from minimum intensity to maximum brightness.
Parade mode may be selected by manually turning on the park lamps during daylight conditions. The front park lamp circuit supplies voltage the HVAC assembly for a park lamp on input, and the display will become full bright. The BCM applies a message signal to the class 2 circuit to the IPC and radio commanding the displays to become full bright. The surveillance mode switch (SEO) overrides this feature.
Battery Rundown Protection / Inadvertent Power
The body control module (BCM) controls the lighting system through circuits that enable the park lamps, head lamps and fog lamps as well as the interior lamps. The BCM opens these enabling circuits 20 minutes after the ignition switch is turned OFF with no subsequent lamp switch activity. If the ignition switch is turned to any position other than OFF, or if a lamp switch is activated, during this 20-minute period, the timer will reset for another 20 minutes.
Dash lights an heat have nothing in common, two separate problems.
Hooking up a scan tool an checking for stored DTC'S -diagnostic trouble codes in the BCM would be first step in diagnostic procedures.
Interior Backlighting Inoperative
Step
Action
Yes
No
Schematic Reference: Interior Lights Schematics
1
Did you perform the Lighting System Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Lighting Systems
2
Turn the ignition switch to the RUN position.
Turn the door switch to the ON position.
Turn the headlamp switch to the HEAD position.
Do all of the interior lamps illuminate?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3
3
Is only one lamp inoperative?
Go to Step 4
Go to Step 5
4
Repair the open or high resistance in the inoperative lamp power supply or ground circuit. Refer to Circuit Testing and to Wiring Repairs in Wiring System.
Did you complete the repair?
Go to Step 6
--
5
Important: Perform the set up procedure for the body control module (BCM). Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.
Replace the BCM. Refer to Body Control Module Replacement in Body Control System.
Did you complete the replacement?
Go to Step 6
--
6
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2
How to Hotwire my impala?
The 2008 Impala uses Passkey III antitheft. There is no "hot wiring". It requires a functional ignition switch/module and a transponder key programmed to the vehicle.
07 Impala engine shuts off while driving
Probly need ignition tune up...test coil n module for wear. Plug cables cud b worn. Iwud hav fuelpump tested also. Get datastream or scan done by aprivate tech not adealership. It helps pinpoint furthr issues
Chevrolet 2008 impala won't drive or reverse after running perfect
it needs service
not told./
1: cranks fast? GRRRRGRRRRR (sound for 14 years heard)
2: cranks okay but will not start or stay running (the engine)
3: engine seems ok but runs but all GEARS PRNDL
R
D and L are dead.
they all ran perfect before. but not today.
if engine is and RPM go real high in D(drive) and R (reverse)
that is called transmission failure and and can be simple or hard $$$
tell more get more , telling the blind.
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