00-14
• When applying a voltage to a part for inspection purposes,
check that the (+) and (–) cables are connected properly then
gradually increase the voltage from zero. Do not exceed the
specified voltage.
Remember that control units and sensors do not necessarily op-
erate on the battery voltage.
1. Handling Precautions for Electric Circuits
CAUTION
• Do not pierce wire insulation with test probes or alligator
clips when performing electrical inspections. Doing so can,
particularly with the chassis harness, hasten corrosion.
1.1 Inspection of harnesses
(1) Inspections with connectors fitted together
(1.1) Waterproof connectors
• Connect an inspection harness and connector A between the
connectors B of the circuit to be inspected. Perform the inspec-
tion by applying a test probe C to the connectors of the inspec-
tion harness. Do not insert the test probe C into the wire-entry
sides of the waterproof connectors since this would damage
their waterproof seals and lead to rust.
(1.2) Non-waterproof connectors
• Perform the inspection by inserting a test probe C into the wire-
entry sides of the connectors. An extra-narrow probe is required
for control unit connectors, which are smaller than other types of
connector. Do not force a regular-size probe into control unit
connectors since this would cause damage.
PRECAUTIONS FOR MAINTENANCE OPERATION
To Next Page
Loading...
Need help?
General
