Disconnect the U1o connector (A) from the SRS unit (B). Disconnect the special tool (2 ohm) from the D1i connector. Check resistance between the No. 7 terminal of the U1o connector and body ground, and between the No. 16 terminal of the U1o connector and body ground. There should be 1 M ohm or more. U1o CONNECTOR Wire side of female terminals Is the resistance as specified? YES - Faulty SRS unit; replace the SRS unit (see page 23-176). NO - Go to step 15.

Disconnect the cable reel from dashboard wire harness B. Check resistance between the No. 7 terminal of the U1o connector and body ground, between the No. 16 terminal of the U1o connector and body ground. There should be 1 M ohm or more. Is the resistance as specified? YES - Replace the cable reel. NO - Replace dashboard wire harness B.