Disconnect the TL1o and TR1o connectors (A) from the TL1i and TR1i connectors (B). 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 and the No. 16 terminals of the U1o connector. 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 - Short in dashboard wire harness B; replace dashboard wire harness B or the cable reel.