Diagnostic Aids

The following can cause an intermittent condition:

• Poor connection at air bag instrument panel module harness connector terminal No. D3 and terminal D4.
• Poor connection at SDM terminal No. 9 and terminal No. 10.
• Open in CKT G/R.
• Open in CKT G.
  NOTE: Test numbers refer to specific step numbers on diagnostic chart and may skip step numbers. No information has been left out. For circuit number identification, see WIRING DIAGRAM  .

1. 2)  This test checks deployment loop voltage differential measured by SDM.
2. 3)  This test checks for proper contact and/or corrosion of Yellow  2-way connector.

Fig 1: DTC B1026 - Driver Deployment Loop Open (1 Of 3)

Courtesy of GENERAL MOTORS CORP.