4WD Indicator Control Unit

Remove radio and remove 4WD control unit. Disconnect control unit harness connector C-43. Backprobe harness connector. Check voltage between each individual terminal and ground terminal No. 8 (Black wire). See Fig 1 and Fig 2 . If after all tests have been completed system is not operating properly, substitute 4WD control unit with known-good unit and retest.

Fig 1: Identifying 4WD Control Unit Harness Connector C-43 Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: 4WD Control Unit Pin Voltage Chart

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.