DTC P0581:00 [MZR 1.5, MZR 1.6]

id0102f0879900

DTC P0581:00

Cruise control multi-function input circuit high input
DETECTION CONDITION
•  The PCM monitors the input signal from the cruise control switch. If the PCM detects that the cruise control switch voltage is above 4.75 V, the PCM determines that the cruise control switch circuit has a malfunction.
Diagnostic support note
•  This is a continuous monitor (other).
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Clock spring connector or terminals malfunction
•  Clock spring malfunction
•  Cruise control switch malfunction
•  PCM connector or terminals malfunction
•  Short to power supply in wiring harness between the following terminals:
―  Clock spring terminal 2L—PCM terminal 1AU
―  Clock spring terminal 2N—PCM terminal 1AF
•  Open circuit in wiring harness between the following terminals:
―  Clock spring terminal 2L—PCM terminal 1AU
―  Clock spring terminal 2N—PCM terminal 1AF
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY RELATED SERVICE 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.
2
INSPECT CLOCK SPRING CONNECTOR AND TERMINALS
Warning
•  Handling the air bag system components improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the air bag system service warnings and cautions before handling the air bag system components.
•  Switch the ignition to off.
•  Disconnect the clock spring connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 8.
No
Go to the next step.
3
INSPECT CLOCK SPRING
•  Inspect the clock spring.
•  Is there any malfunction?
Yes
Replace the clock spring, then go to Step 8.
(See CLOCK SPRING REMOVAL/INSTALLATION.)
No
Go to the next step.
4
INSPECT CRUISE CONTROL SWITCH
•  Inspect the cruise control switch.
•  Is there any malfunction?
Yes
Replace the steering switch, then go to Step 8.
(See STEERING SWITCH REMOVAL/INSTALLATION.)
No
Go to the next step.
5
INSPECT PCM CONNECTOR AND TERMINALS
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector or terminals, then go to Step 8.
No
Go to the next step.
6
INSPECT CRUISE CONTROL SWITCH CIRCUIT FOR SHORT TO POWER SUPPLY
•  Clock spring and PCM connectors are disconnected.
•  Switch the ignition to ON (engine off).
•  Measure the voltage between the following terminals (wiring harness-side) and body ground:
―  Clock spring terminal 2L
―  Clock spring terminal 2N
•  Is there any voltage?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 8.
No
Go to the next step.
7
INSPECT CRUISE CONTROL SWITCH CIRCUIT FOR OPEN CIRCUIT
•  Clock spring and PCM connectors are disconnected.
•  Switch the ignition to off.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Clock spring terminal 2L—PCM terminal 1AU
―  Clock spring terminal 2N—PCM terminal 1AF
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
8
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and warm it up completely.
•  Perform the DTC Reading Procedure.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR 1.5, MZR 1.6].)
No
DTC troubleshooting completed.