Relay(w/ Ptc Heater)
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. REMOVE PTC HEATER RELAY (PTC NO. 1, PTC NO. 1, PTC NO. 3)
(a) Remove the 3 PTC heater relays from the engine room relay block.
Text in Illustration
*1
...
Lost Communication with A/C ECU (U0164)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
U0164
There is no communication from the air conditioning amplifier assembly.
Power source or inside air conditioning ...