Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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On-Board Diagnostic Tests

On-Board Diagnostic Test

DTCs Reading Procedure

1. Perform the necessary vehicle preparation and visual inspection.




2. Connect the WDS or equivalent tester to the vehicle DLC-2 16-pin connector located on the left side of the center console.
3. Retrieve the DTCs by WDS or equivalent tester.

Pending Trouble Code Access Procedure

1. Perform the necessary vehicle preparation and visual inspection. Hook-up the WDS or equivalent tester to the vehicle.




2. Connect the WDS or equivalent tester to the vehicle DLC-2 16-pin connector located on the left side of the center console.
3. Retrieve pending trouble codes by WDS or equivalent tester.

Freeze Frame PID Data Access Procedure

1. Perform the necessary vehicle preparation and visual inspection. Hook-up the WDS or equivalent tester to the vehicle.




2. Connect the WOS or equivalent tester to the vehicle DLC-2 16-pin connector located on the left side of the center console.
3. Record the freeze frame PID data by WDS or equivalent tester.

On-Board System Readiness Tests Access Procedure

1. Perform the necessary vehicle preparation and visual inspection. Hook up the WDS or equivalent tester to the vehicle.




2. Connect the WDS or equivalent tester to the vehicle DLC-2 16-pin connector located on the left side of the center console.
3. Monitor the OBD II systems operating status by WDS or equivalent tester.

PID/DATA Monitor and Record Procedure

1. Perform the necessary vehicle preparation and visual inspection. Hook up the WDS or equivalent tester to the vehicle.




2. Connect the WDS or equivalent tester to the vehicle DLC-2 16-pin connector located on the left side of the center console.
3. Access and monitor PIDs by WDS or equivalent tester.

Diagnostic Monitoring Test Results Access Procedure

1. Perform the necessary vehicle preparation and visual inspection. Hook up the WDS or equivalent tester to the vehicle.




2. Connect the WDS or equivalent tester to the vehicle DLC-2 16-pin connector located on the left side of the center console.
3. Access the diagnostic monitoring test results and read the test results by WDS or equivalent tester.