(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. REPLACE ID CODE BOX (IMMOBILISER CODE ECU)
(a) Replace the ID code box (immobiliser code ECU) See: Accessories and Optional Equipment/Antenna/Keyless Start Antenna/Service
and Repair/Removal.
NEXT -- Continue to next step.
4. CHECK DTC OUTPUT
(a) Clear the DTC See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Reading and
Clearing Diagnostic Trouble Codes.
(b) Recheck for DTCs.
OK:
DTC B2789 is not output.
NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
OK -- END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE)
From 08/2009
NETWORKING: LIN COMMUNICATION SYSTEM: B2789: No Response from ID BOX
B2789 - No Response from ID BOX
DESCRIPTION
This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU)
stops for more than 10 seconds.
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