Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Electronic Brake Control Module: Testing and Inspection

NOTE: Tool Required:
- TOYOTA hand-held tester/TOYOTA break-out-box, or equivalent.

ECU Terminal Values Measurement:





1. Hook up the hand-held tester and break-out-box to the vehicle.
2. Read the ECU input/output values by following the prompts on the tester screen.

NOTE: The hand-held tester has a "Snapshot" function.
- This records the measured values and is effective in the diagnosis of intermittent problems.
- Please refer to the hand-held tester/break-out-box operator's manual for further details.