System Input

System input tests should be performed if no trouble codes are stored when performing SELF-DIAGNOSTICS . System input tests cycle each cruise control switch and sensor.
Use Scan Tester (MB991341) for system input check. Use scan tester according to operating instructions provided with tester. Connect leads of analog voltmeter between cruise control terminal and ground terminal of data link connector. SeeFigure . Turn ignition switch to ON position. Follow INPUT CODE CHART sequence. SeeFig 1 .
To display results of input check, move SET switch to ON position. Then turn MAIN switch to ON position. Within one second, activate RESUME switch. Codes will display if circuit tested is okay.

Fig 1: Input Code Chart

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Fig 2: Check Results Chart

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Fig 3: Symptom Chart (1 Of 2)

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Fig 4: Symptom Chart (2 Of 2)

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