Side Auto Step ECU Power Source Circuit
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURECHECK HARNESS AND CONNECTOR (SIDE AUTO STEP CONTROLLER ECU - BODY GROUND)
(a) Disconnect the A41 side auto step controller ECU assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
|---|---|---|
A41-1 (GND) - Body ground |
Always |
Below 1 Ω |
| NG | .gif) | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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CHECK HARNESS AND CONNECTOR (POWER SOURCE)
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
|---|---|---|
A41-4 (B) - Body ground |
Always |
11 to 14 V |
| A | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| B | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.