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DTC 72 - IPC Serial Data Line Fault: Notes

DTC 72 will set and TRACTION DISABLED indicator will illuminate if communication between the EBTCM and the IPC is lost.

NOTE: Test numbers refer to numbers on diagnostic chart. To identify circuits and terminals referenced in text and flowcharts, see WIRING DIAGRAM .

Fig 1: DTC 72 Diagnostic Flow Chart

G95A15172

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Checks to see if off-board device can communicate with EBTCM.
Checks for a short to battery voltage in serial data circuit.
Checks for a short to ground in serial data circuit.
Checks for an open in serial data circuit.
Checks if off-board device can communicate with EBTCM.
If connections at EBTCM and DLC connector are okay, replace EBTCM.