Basic inspection
Heater and air conditioning system symptomsP0603 ECM
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0603
ECM BACK UP CIRCUIT
[Internal control module keep
alive memory (KAM) error]
Malfunction in the internal back up RAM o ...
Refrigerant
Description
CONNECTION OF SERVICE TOOLS AND EQUIPMENT
Shut-off valve
A/C service valve
Recovery/recycling/recharging
equipment
Refrigerant container (HFC-134a)
Weight scale (J-39650)
Vacuum pump (J-39649)
Manifold gauge set (J-39183)
Preferred (best) method
Alternativ ...
During a call
While a call is active, the following options are
available on the screen:
“Handset”
Select this option to switch control of the
phone call over to the handset.
“Mute Mic.”
Select this option to mute the microphone.
Select again to unmute the microphone.
Red phone ( ...