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Diagnostic codes
Searching in 1990 USDM TSRM.
Areas /Cruise control A — inspection of power source circuit
Step-by-step TSRM procedure

Cruise control A — inspection of power source circuit

Follow the TSRM cruise-control power-source circuit flowchart from BE-65 and BE-66.

BE-65
Current check

Turn ignition switch on

Turn ignition switch on.
Continue

Start inspection

Continue to ECU-IG fuse / operation check.