Acura Engine Shuts Off, But Power Mode Stays In On

Acura Tech Tip: Engine Shuts Off, But Power Mode Stays In On

When you shift into Park and use the One-Push button to shut off the engine, does the power mode stay in ON?

Reference Number: B13050D

When you shift into Park with an Acura with the One-Push button and push it to shut off the engine, does the power mode stay in ON or accessory mode? The culprit could be a misadjusted shift cable. 

If it’s not adjusted right, 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).

To find and fix this problem, hook up the HDS, and go to the ONE-PUSH START Data List . Scroll down to AT SHIFT POSITION P and AT SHIFT POSITION P-PIN.

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 POSITION 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 electronic service manual and adjust the shift cable.

You May Also Like

Detecting Misfire And Knock Conditions

Knock sensors are mounted on the block near the base of the cylinder head.

The knock sensor is a piezoelectric accelerometer that acts as a microphone on the engine. It converts vibrations into alternating current (AC) signal. When the crystal inside the sensor is vibrated, it produces an AC voltage. The greater the vibration or shock, the higher the voltage and frequency.

Mercedes Ignition Coil Pack Diagnostics

Replacing a single coil might not be the best approach to curing an engine of a chronic misfire.

Chrysler’s Totally Integrated Power Module

The TIPM is on the CAN bus, any issues with the communication between the ECM, ABS and BCM can cause problems with the TIPM.

Mercedes EQS Service Opportunities

EQ is the EV brand for Mercedes. It is the equivalent of Audi’s Etron or VW’s iD brands.

ADAS Calibration Tips

Here are 10 tips to follow during ADAS Calibration.

Other Posts

Chassis Control Modules After Reconnecting Battery

To resolve the issue, fully disconnect the negative lead from the battery terminal.

Reflashing Power Supplies

A power supply to keep the system voltage consistent is a required piece of equipment to perform a reflash procedure.

BMW Transfer Case Service

The transfer case is a rather unique design in the way that it operates a clutch pack mechanically, not hydraulically.

Today’s Fuel Pressure Diagnostics

Direct injection pressure is measured with sensors, and you’ll need a scan tool to measure the signals