Toyota Corolla Cross: Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) The transponder key ECU assembly controls the immobiliser system. Immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3).
CHECK DLC3
(a) Check the DLC3.
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INSPECT AUXILIARY BATTERY VOLTAGE
(a) Measure the auxiliary battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery.
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Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Immobiliser System (w/o Smart Key System)
DTC No. Detection Item
Link B2780
Push Switch / Key Unlock Warning Switch Malfunction
B2
Push Switch / Key Unlock Warning Switch Malfunction (B2780)
DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is on even when the ignition switch is ON.
DTC No. Detection Item
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Ambient Temperature Display System
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. The thermistor assembly detects fluctuations in the ambient temperature and sends it as a signal to the combination mete
Right Rear Wheel Speed Sensor Circuit Short to Ground or Open (C051214)
DESCRIPTION
Refer to DTC C051212
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DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C051214
Right Rear Wheel Speed Sensor Circuit Short to Ground
or Open
A short or open circuit is detecte
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