how to fix P0700 code in Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is off.
• Gather tools: OBD-II scanner, multimeter, socket set, fluid catch pan, and safety gloves.

2. Transmission Fluid Check

• Step 1: Locate the transmission dipstick (usually at the back of the engine).
• Step 2: Remove the dipstick and wipe it clean with a lint-free cloth.
• Step 3: Reinsert the dipstick fully and then remove it again to check the fluid level.
• Step 4: If fluid is low, add the appropriate Honda ATF (Automatic Transmission Fluid) through the dipstick tube until the correct level is reached.
• Step 5: Inspect the fluid condition for discoloration or burnt smell; if abnormal, consider a fluid change.

3. Wiring Inspection

• Step 1: Disconnect the negative battery terminal to prevent any electrical shorts.
• Step 2: Locate the TCM wiring harness and visually inspect for frayed wires or corroded connectors.
• Step 3: Tighten any loose connections and repair any damaged wires with appropriate electrical tape or connectors.
• Step 4: Reconnect the battery terminal.

4. TCM Testing

• Step 1: Use a multimeter to check the voltage at the TCM connector, ensuring it meets manufacturer specifications (typically 12V).
• Step 2: If voltage is insufficient, trace back to the power source to identify any issues.
• Step 3: If the TCM is not functioning correctly, consider replacing the module.

5. Clear Codes and Test Drive

• Step 1: Reconnect the negative battery terminal and use the OBD-II scanner to clear the P0700 code.
• Step 2: Start the vehicle and perform a test drive to ensure the transmission operates smoothly without triggering the check engine light.