550ZG±01
I12508
Connector BDTC Check Harness
Current Display Control Panel
Past Record
DTC Display
Memory Clear Button
DTC Calling Button DTC Calling ButtonºHeatingº
Symbol
In Normal
In Malfunction
Connector A
±
HEATER & AIR CONDITIONER COMBUSTION TYPE POWER HEATER SYSTEM
55±15
AVENSIS REPAIR MANUAL (RM1018E)
COMBUSTION TYPE POWER HEATER SYSTEM
ON±VEHICLE INSPECTION
NOTICE:
If the glow plug breaks, the ECU detects the breakage and stops the auto\
matic operation, so
the burner heater does not activate. (For other failures, similarly act\
ivated.)
The cause of failures (such as voltage malfunction, overheating malfunctio\
n, short±circuit or
breakage of functional components, etc.) and repair methods are shown by connecting the DTC
tester and reading the DTC.
1. DIAGNOSTICS FUNCTION
(a) Connect the DTC tester between the connector A (Vehicle harness) of DTC check harness and con- nector B (Power heater harness).
(b) Start the engine.
(c) Pressing the DTC calling button displays a 3±digit number DTC.
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