CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
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System Description
Road TestToyota CH-R Service Manual > Can Communication System: Check Bus 5 Lines for Short Circuit
DESCRIPTION
There may be a short circuit between the CAN main bus lines and/or CAN branch
lines when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central
gateway ECU (network gateway ECU) is below 54 Ω.
Symptom
Trouble Area
Resistance ...
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Side-mounted
Air Conditioner Pressure Sensor): Ambient Temperature Sensor Circuit (B1412)
DESCRIPTION
The thermistor assembly is installed in front of the cooler condenser assembly
to detect the ambient temperature, which is used to control the air conditioning
system. This sensor is connected to the combination meter assembly and detects fluctuations
in the ambient temperature. T ...