Where are the DLC pins on the PCM?
Where are the DLC pins on the PCM?
Studying the PCM pinouts seems to indicate that there are just two DLC pins connected directly to the PCM and they are: PCM pin 5 to DLC Terminal 10 and PCM pin 79 to DLC Terminal 7 TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery terminal, using jumper wires if necessary.
Is the ignition switch part of the PCM?
The ignition switch now talks to the body control module (BCM) and it’s the BCM that initiates one of two relays. The second relay, the more important of the two, is controlled by the powertrain control module (PCM).
Is the diagnostic reader on my GMC truck working?
When I owned my last truck and it started idling roughly, I invested in a handheld diagnostic reader. These little machines aren’t cheap, and the problem I’m now having is pissing me off.
Why does my GM car say no start no crank?
How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.
Where can I find the GM diagnostic trouble code?
Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s). Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other GM diagnostic trouble codes. Manufacturer Specific Codes P1031HO2S Heater Current Monitor Control Circuit Sensors 1
What does the Z71 mean on a Chevy Silverado?
When the pavement ends, Chevy’s Z71 off-road package gives truck owners the confidence to tackle any terrain. If you’re looking for a pickup that won’t quit when the going gets tough, look for a Chevy Silverado with the Z71 badge. This brief guide delves into some of the more unique and interesting features found on Silverado Z71 models.
What kind of suspension package does a GMC Z71 have?
I don’t want to call them “fake Z71s” but it seems that since around 07-08ish, GM decided to offer 2wd trucks with the “Z71 suspension package”. They sit up a little higher (and probably ride) like a 4×4 Z71 but still lack the 4×4 ability.
What are the features of the Z71 package?
1 Z71 Off-Road suspension 2 46mm twin-tube high-pressure gas-charged shocks 3 Skid Plate Package with a frame-mounted shield 4 GM segment-exclusive automatic locking rear differential that provides added grip when you need it
