toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 3816 > < Component Tests and General Diagnostics
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(a) Disconnect the C64 hybrid vehicle control ECU connector.
(b) Measure the resistance between the terminal and body ground.

Standard resistance:

(c) Reconnect the hybrid vehicle control ECU connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK ENGINE ROOM JUNCTION BLOCK (IGCT RELAY VOLTAGE)

(a) Remove the engine room junction block from the engine room R/B.
(b) Turn the power switch on (IG).
(c) Measure the voltage between the terminal and body ground.

Standard voltage:

OK -- INSPECT IGCT RELAY
NG -- Continue to next step.

3. INSPECT IGCT FUSE

Component Tests and General Diagnostics|Page 3816 > < Component Tests and General Diagnostics