Code 71 - EBCM Control Module

EBCM performs various diagnostic checks on itself. Code 71 will be set if a problem is detected.

1. Checks for good EBCM harness connection.
2. Checks if fault code is false. If fault code is not false, replace EBCM.

Fig 1: Code 71 Schematic - EBCM Internal Fault

Courtesy of GENERAL MOTORS CORP.

Fig 2: Code 71 Flow Chart - EBCM Internal Fault

Courtesy of GENERAL MOTORS CORP.