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Home >> Subaru >> 1998 >> Forester Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Tests >> DTC 25: Cruise Control Module Built-In Relay & CPU Ram >> Diagnostic Procedures

Diagnostic Procedures

  1. Check for poor solder connection of relay in cruise control module. Check power supply and ground to cruise control module.
  2. Check for faulty cruise control module CPU RAM. If CPU RAM is faulty, replace cruise control module.
  3. Perform input/output signal tests. Seem INPUT/OUTPUT (I/O) SIGNALS under PIN VOLTAGE TESTS  . Check VSS signal using scan tool. If signals are good, replace cruise control module.
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