Innova SD35 SD-Advisor: Reading and Erasing Diagnostic Trouble Codes (DTCs)

Purpose

To guide you on how to read and clear Diagnostic Trouble Codes (DTCs) on the SD35 SD-Advisor Tablet Scan Tool.

Reading and Erasing DTCs

When reading DTCs, never replace a part based only on the DTC definition. Each DTC has a set of testing procedures, instructions, and flow charts that must be followed to confirm the location of the problem. Always refer to the vehicle service manual for detailed testing instructions.

Check your vehicle thoroughly before performing any test. Always observe safety precautions whenever working on a vehicle.

When the Tablet’s ERASE function is used to erase the DTCs from the vehicle’s onboard computer, “Freeze Frame” data and manufacturer-specific enhanced data are also erased.

If you plan to take the vehicle to a Service Center for repair, Do not erase the codes from the vehicle’s computer. If the codes are erased, valuable information that might help the technician troubleshoot the problem will also be erased.

Read DTCs – $03, $07, & $0A

Step 1 - Connect the Innova SD35 SD-Advisor Tablet Scan Tool to the vehicle and select the 'OBD2 Diagnostics' function.

• First, connect the Innova SD35 SD-Advisor Tablet Scan Tool to your vehicle via the Diagnostic Link Connector (DLC) to retrieve the vehicle's information.

Step 2- From the OBD2 Menu, select the 'Read DTCs - $03, $07, & $0A' function.

Step 3 - View the result and check DTCs in the system.

• The Tablet Scan Tool will retrieve and display any Diagnostic Trouble Codes (DTCs), I/M Monitor Status and Freeze.

  Frame Data retrieved from the vehicle’s computer memory.

• The Tablet Scan Tool will display a code only if codes are present. If no codes are present, the

  message “No Powertrain DTCs or Freeze Frame Data is presently stored in the vehicle’s computer”

  will display.

• In the case of long code definitions, a small arrow is shown in the upper/lower right-hand corner of the display area to indicate the presence of additional information. Use arrow keys as necessary to scroll through the definition.

Step 4 - Read and interpret Diagnostic Trouble Codes/system condition.

• The green, yellow, and red LEDs are used (with the display) as visual aids to make it easier to determine engine system conditions.
  • Green LED – Indicates that all engine systems are running normally, and all emission monitors are active and performing their diagnostic testing. The Malfunction Indicator “Check Engine” Lamp on the vehicle’s instrument panel is off.
  • Yellow LED – Indicates one of the following conditions:
    • PENDING CODE IS PRESENT – If the yellow LED is illuminated, it may indicate a Pending code is present. Check the display for confirmation. A Pending code is confirmed by the presence of a numeric code and the word Pending.

    • MONITOR NOT RUN STATUS – If the display shows a zero (indicating there are no DTCs present in the vehicle’s computer memory), but the yellow LED is that some of the Monitors supported by the vehicle have not yet run and completed their diagnostic testing. Check the display for confirmation. All Monitor icons that are blinking have not yet run and completed their diagnostic testing; all Monitor icons that are solid have run

      and completed their diagnostic testing.

  • Red LED – Indicates there is a problem in one or more of the vehicle’s systems. The Malfunction Indicator “Check Engine” Lamp on the vehicle’s instrument panel is on.
• DTCs that start with “P0”, “P2” and some “P3” are considered Generic (Universal). All Generic DTC definitions are the same on all OBD2-equipped vehicles. The Tablet Scan Tool automatically displays the code definitions (if available) for Generic DTCs.
• DTCs that start with “P1” and some “P3” are Manufacturer-specific codes – their code definitions will vary with each vehicle manufacturer.

Erasing Diagnostic Trouble Codes (DTCs) - $04

Step 1 - From the OBD2 Menu, select the 'Erase DTCs - $04' function.

• From the OBD2 Menu, select Erase DTCs - $04, then press the OK button.

Step 2 - Select 'Erase DTCs' to continue.

• A confirmation message will display.
• If you are sure you want to proceed, select 'Erase DTCs' to continue.
• If you do not want to proceed, press the Back button to return to the OBD2 Menu.
• If the vehicle’s engine is running, an advisory message shows: “Please stop the vehicle and place transmission in Park or Neutral then press “OK” to continue.
• A “One moment please…” message will display while the erase function is in progress.
• If the erase was successful, a confirmation message will display. After 3 seconds, the tablet automatically re-links to the vehicle’s computer.

• If the erase was not successful, an advisory message indicating the erase request was sent to the vehicle’s computer. After 3 seconds, the tablet automatically re-links to the vehicle’s

  computer.