Description
Component function check
1. Check rear window defogger switch function
Is the inspection result normal? Yes >> rear window defogger switch function is ok.
No >> refer to def-30, "diagnosis procedure".
Diagnosis procedure
Regarding wiring diagram information, refer to def-20, "wiring diagram".
1. Check rear window defogger on signal circuit
Is the inspection result normal? Yes >> replace bcm. Refer to bcs-73, "removal and installation" (with intelligent key system) or bcs- 126, "removal and installation" (without intelligent key system).
No >> go to 2.
2. Check harness continuity
Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-105, "Removal and Installation" (with auto A/C) or HAC- 189, "Removal and Installation" (without auto A/C).
NO >> Repair or replace harness.
Ecu diagnosis information
BCM
Reference value
Note:
The signal tech ii tool (j-50190) can be used to perform the following
functions. Refer to the signal tech ii
user guide for additional information.
Activate and display tpms transmitter ids
Display tire pressure reported by the tpms transmitter
Read TPMS DTCs ...
BCM 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 bcm for damage, bend and loose
connection (unit side and
connector side).
Is the inspection result normal?
YES > ...
Refrigeration system symptoms
Trouble diagnosis for unusual pressure
Diagnose using a manifold gauge whenever system’s high and/or low side
pressure(s) is/are unusual. The
marker above the gauge scale in the following tables indicates the standard
(usual) pressure range. Refer to
above table (Ambient air temperature ...