Honda Engine Shuts Off, But Power Mode Stays in ‘On’ or ‘Accessory’ – UnderhoodService

Honda Engine Shuts Off, But Power Mode Stays in ‘On’ or ‘Accessory’

Models: Honda models with one-push start.

Problem: When your customer shifts into Park and shuts off the engine, does the power mode stay in ON or ACCESSORY? The culprit could be a misadjusted shift cable. If it’s not adjusted correctly, it puts pressure on the shift lever, keeping the park pin switch from opening. The power control unit needs the park pin switch position input to switch the power mode to VEHICLE OFF (LOCK).

Solution: To find and fix this problem, hook up a scan tool and look at the data list for the “ONE-PUSH START/PCU” and the transmission gear position called “AT SHIFT POSITION.”

Shift into Park while keeping your foot on the brake pedal. Then, without pressing the release button, pull back on the shift lever (toward Reverse). The AT SHIFT POSITION P signal should read ON, and the AT SHIFT POSITION P-PIN signal should read OFF.

Another test is to shift into Reverse while pressing the brake pedal. Then, press the release button and gently push the shift lever into Park. When it goes into Park, the AT SHIFT POSTION P signal should then read ON and the AT SHIFT POSITION P-PIN signal should read OFF.

If you don’t get the expected results from either of those tests, refer to the service manual and adjust the shift cable.

Courtesy of American Honda Motor Company

You May Also Like

Ford 3.5L EcoBoost Turbocharger Oil Leaks

Ford has revised the service information for the inspection and pinpoint tests of the turbocharger and oil lines.

For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. 

BP Pulse Opens Gigahub in Houston

It is the first BP Pulse-branded Gigahub in the US and opened to the public on April 2.

Service Opportunities Still Exist With EVs

Like all ICE vehicles, you need the correct tools, parts and to follow the proper service procedures when servicing EVs. This video is sponsored by The Group Training Academy.

Wheel Bearing Shortcuts

When you’re installing a wheel speed sensor on a hub unit, never ever remove it from the original unit. Sponsored by Auto Value and Bumper to Bumper.

Monitor Water Quality When Servicing Coolant

The harder the water, the more likely the water pump is to develop a leak.

Other Posts

Rough Running GM Vehicle

This condition may be caused by an internal circuit board fault within the throttle body.

Diagnosing Intercooler Boost Trouble Code P0299

The criteria for setting the code is very basic.

Autel Energy Europe Releases MaxiCharger Launch Plan

Autel introduced the MaxiCharger Megawatt Charging System satellite launch plan at the Nordic EV Summit 2024.

Success Means Investing In More Than Equipment

Todd Baldridge measures success by how well his team benefits from being together.