2006 GMC Yukon Denali - Answered Questions & Fixed issues

Question edited for clarity. Question moved to model category. Duplicate question deleted. Refresh page to see your question. Question answer by Jeff Armer, our Automotive Electronics Tech. Jeff Armer Mar 30, 2024 Under the hood in the engine compartment .And it's called a PCM - powertrain control module. Powertrain Control Module (PCM) At the left front side of the engine compartment -------------------------------------------------------------------------------- Powertrain Control Module Connector End Views Connector 1: Powertrain Control Module (PCM) C1 Connector 2: Powertrain Control Module (PCM) C2 Powertrain Control Module (PCM) C1 Connector Part Information OEM: 12191110 Service: 12167308 Description: 80-Way F Micro-Pack 100W Sealed (BU) Terminal Part Information Pins: 1- 7, 11, 12, 14, 15, 19-21, 23-30, 33, 36, 37, 39, 40, 43-, 48, 51, 54, 57, 58, 61, 63-70, 73-77, 80 Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit Powertrain Control Module (PCM) C1 Pin Wire Color Circuit No. Function 1 BK/WH 451 Ground 2 L-GN 1867 12-Volt Reference 3 PK/BK 1746 Fuel Injector 3 Control 4 L-GN/BK 1745 Fuel Injector 2 Control 5-6 -- -- Not Used 7 GY 2705 5-Volt Reference 8-10 -- -- Not Used 11 L-BU 1876 KS 2 Signal 12 D-BU/WH 1869 CKP Sensor Signal 13 -- -- Not Used 14 OG/BK 1061 UART Serial Data 15 D-BU/WH 774 UART Serial Data 16-18 -- -- Not Used 19 PK 439 Ignition 1 Voltage 20 OG 440 Battery Positive Voltage 21 YE/BK 1868 Low Reference 22 -- -- Not Used 23 BK 470 Low Reference 24 BK/WH 451 Ground (NC1/NC8) 25 TN 1671 HO2S Low Signal Bank 2 Sensor 2 (NC1/NC8) 26 TN 1667 HO2S Low Signal Bank 2 Sensor 1 27 BK/WH 451 Ground (NC1/NC8) 28 TN/WH 1669 HO2S Low Signal Bank 1 Sensor 2 (NC1/NC8) 29 TN 1664 HO2S Low Signal Bank 1 Sensor 1 30 L-GN 1478 Coolant Level Switch Signal 31-32 -- -- Not Used 33 PU 420 TCC Brake Switch/Cruise Control Release Signal 34-35 -- -- Not Used 36 BK 1744 Fuel Injector 1 Control 37 YE/BK 846 Fuel Injector 6 Control 38 -- -- Not Used 39 YE/BK 625 Starter Enable Relay Control 40 BK/WH 451 Ground 41-42 -- -- Not Used 43 RD/BK 877 Fuel Injector 7 Control 44 L-BU/BK 844 Fuel Injector 4 Control 45 GY 2700 5-Volt Reference 46 GY 474 5-Volt Reference 47 -- -- Not Used 48 GY 597 5-Volt Reference 49-50 -- -- Not Used 51 D-BU 496 KS 1 Signal 52-53 -- -- Not Used 54 OG/BK 469 Low Reference 55-56 -- -- Not Used 57 OG 440 Battery Positive Voltage 58 D-GN 1049 Class 2 Serial Data 59-60 -- -- Not Used 61 PK/BK 632 Low Reference 62 -- -- Not Used 63 BK 2755 Low Reference 64 BK/WH 451 Ground 65 PU 1670 HO2S High Signal Bank 2 Sensor 2 (NC1/NC8) 66 PU 1666 HO2S High Signal Bank 2 Sensor 1 67 BK/WH 451 Ground 68 PU/WH 1668 HO2S High Signal Bank 1 Sensor 2 (NC1/NC8) 69 PU/WH 1665 HO2S High Signal Bank 1 Sensor 1 70 BN 1174 Oil Level Switch Signal 71-72 -- -- Not Used 73 BN/WH 633 CMP Sensor Signal 74 YE 410 ECT Sensor Signal 75 PK 1020 Ignition 0 Voltage 76 BK/WH 845 Fuel Injector 5 Control 77 D-BU/WH 878 Fuel Injector 8 Control 78-79 -- -- Not Used 80 BK 407 Low Reference Powertrain Control Module (PCM) C2 Connector Part Information OEM: 12191110 Service: 12167308 Description: 80-Way F Micro-Pack 100W Sealed (GN) Terminal Part Information Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit Powertrain Control Module (PCM) C2 Pin Wire Color Circuit No. Function 1 BK/WH 451 Ground 2 -- -- Not Used 3 TN 1465 Fuel Pump Relay Control - Secondary 4-8 -- -- Not Used 9 D-GN/WH 465 Fuel Pump Relay Control 10 WH 121 Engine Speed Signal 11-13 -- -- Not Used 14 RD/BK 380 A/C Refrigerant Pressure Sensor Signal 15 BN 25 Charge Indicator Control 16 GY/BK 1694 4WD Low Signal 17-19 -- -- Not Used 20 L-GN/BK 822 VSS Low Signal 21 PU/WH 821 VSS High Signal 22-24 -- -- Not Used 25 TN 472 IAT Sensor Signal 26 PU 2121 IC 1 Control 27 RD 2127 IC 7 Control 28 L-BU/WH 2126 IC 6 Control 29 D-GN/WH 2124 IC 4 Control 30 -- -- Not Used 31 YE 492 MAF Sensor Signal 32 L-GN 432 MAP Sensor Signal 33 -- -- Not Used 34 D-GN/WH 428 EVAP Canister Purge Solenoid Control 35-38 -- -- Not Used 39 RD 631 12-Volt Reference 40 BK/WH 451 Ground 41-42 -- -- Not Used 43 D-GN/WH 459 A/C Compressor Clutch Relay Control 44 -- -- Not Used 45 WH 1310 EVAP Canister Vent Solenoid Control 46 BN/WH 419 MIL Control 47-48 -- -- Not Used 49 YE/BK 1827 Vehicle Speed Signal 50 D-GN/WH 817 Vehicle Speed Signal 51 -- -- Not Used 52 BN 2391 HO2S Heater Low Control Bank 1 Sensor 2 (NC1/NC8) 53 RD/WH 3223 HO2S Heater Low Control Bank 2 Sensor 2 (NC1/NC8) 54 PU 1589 Fuel Level Sensor Signal - Primary 55-56 -- -- Not Used 57 BK 552 Low Reference 58 TN/WH 332 Oil Pressure Sensor Signal 59 PU 806 Crank Voltage 60 BN 2129 Low Reference 61 BN/WH 2130 Low Reference 62-63 -- -- Not Used 64 D-GN 890 Fuel Tank Pressure Sensor Signal 65 -- -- Not Used 66 PU/WH 2128 IC 8 Control 67 RD/WH 2122 IC 2 Control 68 D-GN 2125 IC 5 Control 69 L-BU 2123 IC 3 Control 70-71 -- -- Not Used 72 BK/WH 3113 HO2S Heater Low Control Bank 1 Sensor 2 (NC1/NC8) 73 D-BU 1936 Fuel Level Sensor Signal - Secondary 74 L-GN 3212 HO2S Heater Low Control Bank 2 Sensor 1 75 GY 23 Generator Field Duty Cycle Signal 76-79 -- -- Not Used 80 BK 2751 Low Reference

Disconnect battery and let it sit overnight.

Brake Fuse 10amp in the I/P fuse box supply's B+ voltage to the traction control switch , also powers EBCM - electronic brake control module and the stop lamp switch . Fuse Block - I/P At the left side of the I/P behind the access panel

Back out of set up. Usually turning them off and on will back out of set up.

Video on youtube maybe .

Can be many things. Check the cv joints first- will make sharp clicking noise especially when turning. Wheel bearing but it will be all the time and noise will increase with speed. Control arm bushes - shudder and noise when accelerating or when driving on road with an slight incline (up hill). If nothing obvious found take the car to an suspension specialist for evaluation and quote.

Main fuse block under hood I think.

does it turn over?? or have some power? if it does turnover but not start it is your security system.. its common in gm's ive had it happen. You can bypass that's what I did its like $400 cheaper then taking it in.. and u can d it yourself. had mine for 5 years and haven't had an issue hope it helps

Would need it looked at by a qualified tech. Could be a bad control unit, a bad blend door motor or an electrical fault.

pull fuses or relay until current drop to 50mA and less.

Yes there is a fan fuse, see your owners manual, but will need to be replaced every time you want to drive the truck. The easiest way is to remove the + battery cable to save your battery from dying until you can replace the fan itself. Its not running hot or anything? This can be a safety feature to cool engine if it is.

Hi, please replace window glass motor system.

Anti theft not recognizing key, possibly worn out. Try spare key if you have one or have a new one cut and recheck.

check for codes. check more more code readers

check your thermostat

can be found in repair manual from auto parts store

155 Ft/Lb is the correct Torquehttp://www.speedwayautoparts.com/Torque%20Specks.pdf

This site may help you. http://newrockies.com/

Phone A GM dealership to find out, Evan the parts guys one you give them the serail number for it will be able to help you out,

No the mirror must be replace as the parts that move it are loss from wear. These mirrors if power cost about $300.00