Procedure I

4X4 lamps flashing with no DTCs stored in the GEM. Perform following repair procedure:

1. Select clear DTC command (even if there are no DTCs available) in the NGS Tester and cycle the vehicle ignition key (on-off-on) to reset the GEM's 4X4 monitoring software.

2. Test drive to see if the condition returns. If the condition DOES NOT return, the intermittent fault is no longer present at this time and no repair should be performed. Release the vehicle to the customer.

3. If the condition DOES return and DTC(s) were stored in the GEM, use the DTC(s) to perform diagnostics (refer to Service Diagnostic Information table in this TSB).