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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 505 (Automatic Transmission - 2ML70 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0815, P0816, or P0826 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S2 transmission manual shift switch.
  2. Test for 6.5-7.0K Ω between the signal terminal 3 and the B+ terminal 4 with the switch in the released position.
    • If not the specified value, replace the S2 transmission manual shift switch.
  3. Test for 1.5-2.0K Ω between the signal terminal 3 and the B+ terminal 4 with the switch in the plus position.
    • If greater than the specified range, replace the S2 transmission manual shift switch.
  4. Test for 3.8-4.0K Ω between the signal terminal 3 and the B+ terminal 4 with the switch in the minus position.
    • If greater than the specified range, replace the S2 transmission manual shift switch.
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