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Troubleshooting assistant

Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.

Diagnostic codes
Searching in 1990 USDM TSRM.
Areas /Theft deterrent L — theft deterrent horn circuit
Step-by-step TSRM procedure

Theft deterrent L — theft deterrent horn circuit

Follow the theft deterrent system flowchart from BE-97.

BE-97
Current check

Is HAZ-HORN fuse normal

Is HAZ-HORN fuse normal?
BE-97
Yes

OK

Continue to next check.
Choose Yes
No

Replace fuse. Is operation normal?

Short circuit in wire harness between fuse and terminal 6 of computer.
Choose No
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