SYSTEM DIAGRAM
Communication Table
|
Sender |
Receiver |
Signal |
Communication Line |
|---|---|---|---|
|
A/C amplifier |
ECM |
Magnetic clutch request signal*1 |
CAN |
|
Idle up request signal |
|||
|
External variable control solenoid current signal |
|||
|
Cooling fan motor driving request signal |
|||
|
Refrigerant gas pressure sensor signal |
|||
|
Ambient temperature signal |
|||
|
A/C amplifier |
Air conditioning control assembly |
Panel indication signal |
LIN |
|
MODE indication signal |
|||
|
Blower level indication signal |
|||
|
Set temperature indication signal |
|||
|
Combination meter |
A/C amplifier |
Vehicle speed signal |
CAN |
|
ECM |
A/C amplifier |
Engine revolution speed signal |
CAN |
|
Engine coolant temperature signal |
|||
|
A/C control cut signal |
|||
|
Air conditioning control assembly |
A/C amplifier |
AUTO switch signal |
LIN |
|
OFF switch signal |
|||
|
A/C switch signal |
|||
|
Fr DEF switch signal |
|||
|
Rr DEF switch signal |
|||
|
MODE switch signal |
|||
|
REC/FRS switch signal |
|||
|
SYNC switch signal |
|||
|
Blower switch signal (FAN+, FAN-) |
|||
|
Set temperature switch signal (UP, DOWN) |
Parts Location
System DescriptionCheck Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that normal mode cannot detect. Check mode can also detect all the malfunctions
that normal mode can detect. In check mode, DTCs are d ...
Vehicle Speed Sensor "A" Intermittent / Erratic / High (P0503)
DESCRIPTION
If a malfunction (a rapid change in vehicle speed) in the vehicle speed signal
being output from the skid control ECU is detected while the cruise control is in
operation, the ECM determines that there is a momentary interruption or noise, and ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Push-button start function data and the Diagnostic Trouble Codes (DTCs) can
be read through the Data Link Connector 3 (DLC3) of the vehicle. When the function
seems to be malfunctioning, use the Techstream to check for ...