lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 4293 > < Initial Inspection and Diagnostic Overview|Page 4291
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(a) Disconnect the A69 electric power control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE ELECTRIC POWER CONTROL ECU BRANCH WIRE OR CONNECTOR (CANH, CANL)
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (ELECTRIC POWER CONTROL ECU - BATTERY AND BODY GROUND)

(a) Connect the cable to the negative (-) battery terminal.
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected  See: Testing and Inspection/Programming
and Relearning/Repair Instruction - Initialization.
(b) Disconnect the PA, PK and PM electric power control ECU connectors.
(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

(d) Measure the voltage according to the value(s) in the table below.

Standard voltage:

Initial Inspection and Diagnostic Overview|Page 4293 > < Initial Inspection and Diagnostic Overview|Page 4291