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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 /Cruise control K — inspection of vacuum circuit (7M-GTE only)
Step-by-step TSRM procedure

Cruise control K — inspection of vacuum circuit (7M-GTE only)

Follow the vacuum circuit flowchart from BE-77 and BE-78.

BE-77
Current check

Turn ignition switch off

Turn ignition switch off.
Continue

Start vacuum circuit inspection

Inspect vacuum hose condition.