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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Engine Controls [Self-Diagnostics 3.0L]) >> Diagnostic Tests >> DTC P0564: Cruise Control Switch Circuit - Malfunction >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. If FREEZE FRAME DATA has been recorded, go to next step. If FREEZE FRAME DATA has not been recorded, record FREEZE FRAME DATA. Go to next step.
  2. Verify Related Repair Information Availability -  Check for related Service Bulletins and/or on-line repair information availability. If any related repair information is available, perform repair or diagnosis according to available repair information. If vehicle is not repaired, go to next step. If related repair information is not available, go to next step.
  3. Inspect Cruise Control Switch Connector For Poor Connection -  Turn ignition off. Disconnect cruise control switch 8-pin harness connector. Inspect for poor connection (such as damaged, pulled-out terminals or corrosion). If connections are okay, go to next step. If any malfunctions are present, repair or replace faulty terminal. After repair, go to step  10.
  4. Inspect Cruise Control Switch Signal Circuit For Short To Power -  Turn ignition on, engine off. Check for voltage between cruise control switch 8-pin harness connector terminal "B" (Red/Blue wire) and body ground. If battery voltage is not present, go to next step. If battery voltage is present, repair short circuit to power in Red/Blue wire between cruise control switch 8-pin harness connector terminal "B" and PCM 104-pin harness connector terminal No. 15 or replace wire harness. After repair, go to step  10.
  5. Inspect Cruise Control Switch Signal Circuit For Short To Ground -  Disconnect cruise control switch 8-pin harness connector and PCM 104-pin harness connector. Check for continuity in Red/Blue wire between cruise control switch 8-pin harness connector terminal "B" and body ground. See Fig 1. If continuity is not present, go to next step. If continuity is present, repair short circuit to ground in Red/Blue wire between cruise control switch 8-pin harness connector terminal "B" and PCM 104-pin harness connector terminal No. 15 or replace wire harness. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. After repair, go to step  10.
    Fig 1: Identifying Cruise Control Switch Circuits & Harness Connector Terminals
    G00221554Courtesy of MAZDA MOTORS CORP.
  6. Inspect Cruise Control Switch Ground Circuit For Open Circuit -  Turn ignition off. Check for continuity between cruise control switch 8-pin harness connector terminal "C" (Black wire) and body ground. If continuity is present, go to next step. If continuity is not present, repair open circuit in Black wire between cruise control switch 8-pin harness connector terminal "C" and body ground or replace wire harness. After repair, go to next step.
  7. Inspect Cruise Control Switch Operation -  Inspect cruise control switch. Refer to appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT. If cruise control switch is okay, go to next step. If cruise control switch is faulty, replace cruise control switch. After repair, go to step  10.
  8. Inspect PCM Connector For Poor Connection -  Turn ignition off. Disconnect PCM 104-pin harness connector. Check for poor connection (such as damaged, pulled-out pins, and corrosion). If terminals are okay, go to next step. If any malfunction is present, repair or replace terminal. After repair, go to step  10.
  9. Inspect Cruise Control Switch Signal Circuit For Open Circuit -  Turn ignition off. Check for continuity in Red/Blue wire between cruise control switch 8-pin harness connector terminal "B" and PCM 104-pin harness connector terminal No. 15. See Fig 1. If continuity is present, go to next step. If continuity is not present, repair open circuit in Red/Blue wire between cruise control switch 8-pin harness connector terminal "B" and PCM 104-pin harness connector terminal No. 15 or replace wire harness. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. After repair, go to next step.
  10. Verify Trouble Shooting Of DTC P0564 Is Completed -  Reconnect all connectors. Clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Drive vehicle using cruise control for 2 minutes or more. If same DTC is not present, go to next step. If same DTC is present, replace PCM. For PCM removal and installation, see POWERTRAIN CONTROL MODULE under COMPUTERIZED ENGINE CONTROLS in REMOVAL & INSTALLATION article. After repair, go to next step.
  11. Verify After Repair Procedure -  Using scan tool, perform After Repair Procedure. See AFTER REPAIR PROCEDURE . If any DTCs are present, go to appropriate DTC inspection. Refer to DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no DTCs are present, trouble shooting is complete.
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