DIAGNOSTIC ITEM 19: Diagnose When The Scan Tool Cannot Receive The Data Sent By A/C-ECU <Vehicles With A/C> Or Heater Control Unit <Vehicles Without A/C>: Notes

CAUTION: When servicing a CAN bus line, ground yourself by touching a metal object such as an unpainted water pipe. If you fail to do so, a component connected to the CAN bus line may be damaged.

Fig 1: CAN-B Communication Circuit

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Locating Connectors C-22, C-53 & C-105

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.