LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1347 (Transfer Case - Mp 1625/1626-NQF) >> Diagnostic Information and Procedures >> DTC B2725 >> Component Testing >> 1. TCSCS - Mode Switch Circuit

1. TCSCS - Mode Switch Circuit

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Key OFF. Remove the TCSCS.
  2. Using the J 35616-65:  L-BU probes, measure the resistance for each of the mode positions of the TCSCS between the 5-volt reference circuit, TCSCS X1 pin 11, and the Switch Signal circuit TCSCS X1 pin 12.
  3. Test the TCCM for proper operation.
Mode Range Nominal
2 Hi 1475-1550 ohms 1515 ohms
4 Hi 625-700 ohms 665 ohms
4 Low Lock 2300-2400 ohms 2345 ohms
Neutral 1000-1050 ohms 1020 ohms
scientia non olet · About LEMON Manuals