| Connector 1: | Front Axle Actuator | 
| Connector 2: | Propshaft Speed Sensor - Front (NP8) | 
| Connector 3: | Propshaft Speed Sensor - Rear (NP8) | 
| Connector 4: | Transfer Case Encoder Motor (NP8) | 
| Connector 5: | Transfer Case Shift Control Module C1 | 
| Connector 6: | Transfer Case Shift Control Module C2 | 
| Connector 7: | Transfer Case Shift Control Module C3 | 
| Connector 8: | Transfer Case Shift Control Switch | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
A  | TN/WH  | 1695  | Axle Switch Signal  | 
B  | GY/BK  | 1570  | Front Axle Actuator Control  | 
C  | BN  | 241  | Ignition 3 Voltage  | 
D  | --  | --  | Not Available  | 
E  | BK  | 550  | Ground  | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
A  | YE  | 400  | Signal High - Front/VSS High Signal/OSS High Signal  | 
B  | PU  | 401  | Signal Low - Front/VSS Low Signal/OSS Low Signal  | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
A  | L-BU  | 2221  | Signal High - Rear  | 
B  | D-GN  | 2222  | Signal Low - Rear  | 
Connector Part Information
  | 
Terminal Part Information
 
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
A  | L-GN/BK  | 6028  | Transfer Case Encoder 5-Volt Reference  | 
B  | BN/WH  | 1555  | Channel P Encoder - Signal  | 
C  | TN/WH  | 1554  | Encoder Low Reference  | 
D  | TN  | 1552  | Motor Control A  | 
E  | OG  | 1553  | Motor Control B  | 
F  | RD/BK  | 1342  | Battery Positive Voltage  | 
G  | TN  | 1569  | Lock Solenoid Control  | 
H  | --  | --  | Not Used  | 
Connector Part Information
  | 
Terminal Part Information
 
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1  | --  | --  | Not Used  | 
2  | GY  | 6029  | 5-Volt Reference  | 
3  | BN/WH  | 1555  | Channel P Encoder - Signal  | 
4  | GY/BK  | 1694  | 4WD Low Signal  | 
5  | BN  | 1560  | Neutral Indicator Control  | 
6  | L-GN/BK  | 1563  | 2 'HI' Indicator - Control  | 
7  | TN  | 1569  | Lock Solenoid Control  | 
8  | --  | --  | Not Used  | 
9  | L-GN/BK  | 6028  | Transfer Case Encoder 5-Volt Reference  | 
10  | TN/WH  | 1554  | Encoder Low Reference  | 
11  | L-BU  | 1693  | Switch Signal  | 
12  | TN/BK  | 1566  | 4 'HI' Indicator - Control  | 
13  | PU/WH  | 1565  | 4 'LO' Indicator - Control  | 
14  | PK  | 1561  | AWD Indicator Control  | 
15  | GY/BK  | 1570  | Front Axle Actuator Control  | 
16  | --  | --  | Not Used  | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1-2  | --  | --  | Not Used  | 
3  | TN/WH  | 1695  | Axle Switch Signal  | 
4  | TN  | 2501  | High Speed GMLAN Serial Data Bus-  | 
5  | TN/BK  | 2500  | High Speed GMLAN Serial Data Bus+  | 
6  | --  | --  | Not Used  | 
7  | D-GN  | 2222  | Signal Low - Rear  | 
8  | L-BU  | 2221  | Signal High - Rear  | 
9  | PK  | 239  | Ignition 1 Voltage  | 
10  | D-BU  | 5985  | Accessory Wakeup Serial Data  | 
11  | --  | --  | Not Used  | 
12  | TN  | 2501  | High Speed GMLAN Serial Data Bus-  | 
13  | TN/BK  | 2500  | High Speed GMLAN Serial Data Bus+  | 
14  | --  | --  | Not Used  | 
15  | YE  | 400  | Signal High - Front/VSS High Signal/OSS High Signal  | 
16  | PU  | 401  | Signal Low - Front/VSS Low Signal/OSS Low Signal  | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
A  | OG  | 1553  | Motor Control B  | 
B  | TN  | 1552  | Motor Control A  | 
C  | RD/BK  | 1342  | Battery Positive Voltage  | 
D  | BK  | 550  | Ground  | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1  | --  | --  | Not Used  | 
2  | WH  | 2283  | Rear Wiper/Washer Switch Supply Voltage  | 
3  | BN  | 1560  | Neutral Indicator Control  | 
4  | PU/WH  | 6816  | Indicator Dimming Control  | 
5  | BN/WH  | 230  | Instrument Panel Lamp Dimming Control  | 
6  | BK  | 1050  | Ground  | 
7  | PK  | 1561  | AWD Indicator Control  | 
8  | L-GN/BK  | 1563  | 2 'HI' Indicator - Control  | 
9  | TN/BK  | 1566  | 4 'HI' Indicator - Control  | 
10  | PU/WH  | 1565  | 4 'LO' Indicator - Control  | 
11  | GY  | 6029  | Four Wheel Drive Mode Switch 5-Volt Reference  | 
12  | L-BU  | 1693  | Switch Signal  |