Engine Immobiliser System (W/ Smart Key System) Certification Ecu Power Source Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BATTERY)
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BODY GROUND)
ENGINE IMMOBILISER SYSTEM (w/ Smart Key System) - Certification ECU Power Source Circuit |
DESCRIPTION
This is the power source circuit of the certification ECU (smart key ECU assembly).The certification ECU (smart key ECU assembly) controls the following:- Key verification confirmation
- Electrical key oscillator (door, indoor and outside) control
- Entry door LOCK/UNLOCK request to the main body ECU (instrument panel junction block)
- Steering LOCK/UNLOCK request
- Immobiliser SET/UNSET request to the ID code box (immobiliser code ECU)
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- If the certification ECU (smart key ECU assembly) is replaced, register the key and ECU communication ID (COROLLA_ZRE142 RM000000QYF05AX.html).
| 1.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BATTERY) |
Disconnect the certification ECU (smart key ECU assembly) connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection
| Condition
| Specified Condition
|
E36-1 (+B) - Body ground
| Always
| 11 to 14 V
|
E36-18 (IG) - Body ground
| Engine switch off
| Below 1 V
|
E36-18 (IG) - Body ground
| Engine switch on (IG)
| 11 to 14 V
|
E36-19 (ACC) - Body ground
| Engine switch off
| Below 1 V
|
E36-19 (ACC) - Body ground
| Engine switch on (ACC)
| 11 to 14 V
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE |
|
|
| 2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - BODY GROUND) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
E36-17 (E) - Body ground
| Always
| Below 1 Ω
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
