Retrial Operation

After switch signal is received by motor actuator, shift change begins. However, if shifting cannot be completed due to cold temperatures or high speed operation, system will attempt switching again after 2 seconds if shift change is not completed. Motor actuator will reverse its rotation for 1.2 seconds, then attempt to switch again. This process is repeated up to 3 times. The 4WD indicator light will blink rapidly to indicate shift switching is being attempted.

Fig 1: 4WD Shift-On-The-Fly Control System Schematic

Courtesy of ISUZU MOTOR CO.

Fig 2: 4WD Shift-On-The-Fly Control System Vacuum Diagram

Courtesy of ISUZU MOTOR CO.