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 DTC P0564 [L8, LF, L3]

DTC P0564 [L8, LF, L3]

id0102a1808900

DTC P0564

Cruise control switch circuit malfunction

DETECTION CONDITION

• The PCM monitors the cruise control switch signal. If the PCM detects that any one of following switches (Main, CANCEL, SET/COAST, RESUME/ACCEL) remains on for 2 min, the PCM determines that the cruise control switch circuit has a malfunction.
Diagnostic support note
• This is a continuous monitor (Other).
• MIL does not comes on.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is not available.
• DTC is stored in PCM memory.

POSSIBLE CAUSE

• Cruise control switch malfunction
• Connector or terminal malfunction
• Short to power circuit in wiring from cruise control switch terminal 6 and PCM terminal 1AQ
• Short to ground circuit in wiring from cruise control switch terminal 6 and PCM terminal 1AQ
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service information.
If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT CRUISE CONTROL SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND
• Disconnect cruise control switch and PCM connectors.
• Inspect for continuity between cruise control switch terminal 6 (wiring harness-side) and body ground.
• Is there continuity?
Yes
Repair or replace short to ground, then go to Step 6.
No
Go to the next step.
4
INSPECT CRUISE CONTROL SWITCH SIGNAL CIRCUIT FOR SHORT TO POWER
• Turn the ignition switch to the ON position (Engine off).
• Inspect the voltage between cruise control switch terminal 6 (wiring harness-side) and body ground.
• Is the voltage below 1.0 V?
Yes
Go to the next step.
No
Repair or replace short to power supply, then go to Step 6.
5
INSPECT CRUISE CONTROL SWITCH OPERATION
• Inspect the cruise control switch.
• Is the cruise control switch normal?
Yes
Go to the next step.
No
Replace the cruise control switch, then go to the next step.
6
VERIFY TROUBLESHOOTING OF P0564 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Drive the vehicle with cruise control 2 min. or more.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform "AFTER REPAIR PROCEDURE".
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.