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 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 Immobiliser System (w/o Smart Key System)
DTC No. Detection Item
Link B2780
Push Switch / Key Unlock Warning Switch Malfunction
B2
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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INSPECTION PROCEDURE 1. INSPECT FRONT SEAT INNER BELT ASSEMBLY (for Driver Side)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection Condition
Specified Condition
O49-3(+) - O49-2(-)
Driver side seat
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 PRECAUTION
-
- -
2 DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
- -
- -
3 FRONT DOOR INSIDE HANDLE BEZEL PLUG
69284F
