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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1860 (Hybrid/EV Control System) >> Diagnostic Information and Procedures >> DTC B009F >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
    • If the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
  2. Verify the serial data gateway module is programmed with the correct software calibration.
    • If the correct software is not installed, program the serial data gateway module.
  3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
    • If not No Crash, refer to Circuit/System Testing.
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