Diagnosis system (HVAC)
U1000 CAN comm circuitPower control system
System Diagram
System Description
COOLING FAN CONTROL
IPDM E/R controls cooling fans according to the status of the cooling fan
speed request signal received from
ECM via CAN communication.
GENERATOR CONTROL
IPDM E/R outputs power generation command signal (PWM signal) to the
generat ...
STRG branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the steering angle sensor
for damage, bend and loose connection
(unit side and connector side).
2.CHECK HARNESS FOR OPE ...
P0451 evap control system pressure sensor
Description
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pressure
increases
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
Never remove fuel filler cap during DTC confirmation procedur ...