Ignition Switch On Malfunction Immobilizer System
Table of contents
B2785 TOYOTA Possible Causes
- Faulty Ignition switch
- Faulty EFI main relay
- Ignition switch harness is open or shortec
- Ignition switch circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How do I fix code B2785 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B2785 TOYOTA code
The cost of diagnosing the B2785 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
– Short circuit in IG switch circuit
– Ignition switch adheres to ON position
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2785 TOYOTA Description
This Diagnostic Trouble Code (DTC) is output if communication between the transponder key Electronic Control Unit (ECU) and power source control ECU is not possible.