Circuit Diagram (page 2 of 3)

CAUTION:

• All SRS electrical wiring harnesses are covered with yellow outer insulation.
• Replace the entire affected SRS harness assembly if it has an open circuit or damaged wiring.
• Before disconnecting the SRS wiring harness, turn the ignition switch off, disconnect the negative and positive battery cables, and wait at least three minutes, see SUPPLEMENTARY RESTRAINT SYSTEM

1. Remove the dashboard lower cover (see Ignition switch).

A     4–P connector (SRS main harness)
B     View from wire side
C     4–P connector (main wire harness)

2. Disconnect the SRS main harness 4–P connector from the main wire harness.

A     Slip ring
B     5–P connector (SRS main harness)

3. Check for continuity between the BLU/RED (SRS main harness side) terminal and body earth with the horn button pushed.

• If there is continuity, the horn switch is OK.
• If there is no continuity, go to step 4.

4. Remove the column lower cover, and then disconnect the 5–P connector from the slip ring.

Note: See Supplemental Restraint System (SRS) – Type II before removing the connector locked with the connector lock pin.

5. Check for continuity between No. 3 terminal and body earth with the horn button pushed.

• If there is continuity, check for bent, loose or corroded terminal, or an open in the BLU/RED wire between the SRS main harness.
• If there is no continuity, go to step 6.