DTC P2530 [MZ-CD 1.6 (Y6) (EURO4 emission level)]

id0102g6841900

DTC P2530

Ignition switch run position circuit malfunction
DETECTION CONDITION
•  The PCM monitors the input voltage from the ignition switch signal. If the voltages at PCM terminal 311 deviates from the threshold, the PCM determines that the there is a ignition switch circuit malfunction.
POSSIBLE CAUSE
•  Melt or burnt ENG fuse
•  Short to ground in the wiring harness between ignition switch terminal A and ENG fuse terminal A
•  PCM connector or terminal malfunction
•  Ignition switch connector or terminal malfunction
•  Open circuit in the wiring harness between ignition switch terminal A and ENG fuse terminal A
•  Open circuit in the wiring harness between ENG fuse terminal B and PCM terminal 311
•  Ignition switch malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has the FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related service repair information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING CODE AND/OR DTC
•  Switch the ignition to ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Is the other PENDING CODE/DTC also present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
No
Go to the next step.
4
CHECK ENG FUSE CONDITION
•  Switch the ignition to OFF.
•  Remove the ENG fuse.
•  Verify ENG fuse conditions.
•  Is there any melt or burnt?
Yes
Replace the ENG fuse, then go to Step 10.
No
Go to the next step.
5
VERIFY POWER SUPPLY VOLTAGE
•  Switch the ignition to ON (engine off).
•  Measure the voltage between fuse terminal A and body ground.
•  Is the voltage B+?
Yes
Go to the next step.
No
Go to Step 7.
6
INSPECT PCM CONNECTOR FOR POOR CONNECTION
•  Switch the ignition to OFF.
•  Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the wiring harness for open circuit between ENG fuse terminal B and PCM terminal 311, then go to Step 10.
No
Repair or replace the terminal, then go to Step 10.
7
INSPECT IGNITION SWITCH CONNECTOR FOR POOR CONNECTION
•  Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 10.
No
Go to the next step.
8
INSPECT IGNITION SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT
•  Measure the voltage between ignition switch terminal F and body ground.
•  Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace the wiring harness for open circuit, then then go to Step 10.
9
INSPECT IGNITION SWITCH
•  Inspect the ignition switch.
•  Is there any malfunction?
Yes
Replace the ignition switch, then go to the next step.
No
Repair or replace the wiring harness for open circuit, then then go to the next step.
10
VERIFY THAT DTC P2530 TROUBLESHOOTING IS COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Run the vehicle under the FREEZE FRAME DATA stored condition.
•  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.
11
VERIFY AFTER REPAIR PROCEDURE
•  Perform the after repair procedure.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6 (Y6) (EURO4 emission level)].)
No
DTC troubleshooting completed.