Critical Electrical
Wiring Deterioration
Symptoms
Intermittent failures, non-functioning accessories, dim lights, difficulty diagnosing faults.
Cause
Wiring insulation becomes brittle with age and heat. Connectors corrode, increasing resistance. Previous owners' modifications add non-standard wiring.
Fix
Inspect the harness, repair damaged sections, clean all connectors and earth points.
Toyota's wiring is generally better quality than British equivalents, but 50 years still takes a toll.
Cost: $100--300 for targeted repairs.
Cost mentioned in fix
Cost: $100
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