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Diagnostic Fault Information

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Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Wake Up Signal B137A 06* 1 2 -
* Will also set U1812 in the HPCM
  1. Open at SDGM or BECM will cause DTC U1812 in HPCM. Open at PIM will cause DTC U189A in the HPCM.
  2. Parasitic drain on battery, and will set DTC U1875, U1876, U1878, U1879 as history in the HPCM with the key ON, or as current with the key OFF.
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