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Home >> Mazda >> 1994 >> B2300 SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Circuit Tests >> Circuit Test QC - Output State Check Not Functioning >> Diagnostic Aids
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Diagnostic Aids

Perform this circuit test when directed by other CIRCUIT TESTS. This test is only intended to diagnose following.

1) Check For Codes 121, 123 & 122  Disconnect cruise control servo wiring harness connector (if equipped). Perform KOEO SELF-TEST. If Code 121, 123 or 122 is present, go to appropriate CIRCUIT TEST. See SERVICE CODE REFERENCE. If Code 111 (pass code) is displayed, go to next step. If no code is displayed, go to CIRCUIT TEST QA.

2) Check Throttle Linkage  Check throttle and linkage for sticking and binding. If throttle and linkage are okay, replace Throttle Position (TP) sensor and repeat QUICK TEST. If throttle and linkage are binding, repair as necessary and repeat QUICK TEST.

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