DTC P1607 Mini

Description

The A C-ECU receives air conditioning operation-related signals from the satellite radio tuner via the CAN bus lines. If any of the air conditioning control-related signals from the satellite radio tuner cannot be received, the diagnostic trouble code U0195 is stored. Current trouble: Connector(s) or wiring harness in the CAN bus lines between the Satellite radio tuner and the A C-ECU, the power supply system to the Satellite radio tuner, the Satellite radio tuner itself, or the A C-ECU may be defective. Past trouble: If DTC U0195 is stored as a past trouble, carry out diagnosis with particular emphasis on wiring and connector(s) in the CAN bus line between the A C-ECU and the Satellite radio tuner, and the power supply system to the Satellite radio tuner. If the connectors and wiring are normal, and obviously the ECU is the cause of the trouble, replace the ECU. If in doubt, do not replace the ECU.