P0AB9 · निर्माता की तकनीकी जानकारी

MAZDA · 2026-09-29

DESCRIPTION Some CX-70 and CX-90 PHEV vehicles may fail to start (enter READY mode) in cold weather, but the vehicle can often be started successfully on the next attempt. This may occur when leakage current between connector terminals causes the MAIN Relay to be falsely detected as ON. As a result, the Battery ECU may incorrectly determine the relay status, preventing READY mode activation and resulting in a no-start condition. One or more of the following DTCs may be stored: P0AB9, U0100, U0110, and U0115 and multiple warning lights may also turn on. This is caused by corrosion of the connector terminals on the 3002-411 connector in the luggage compartment from water. To eliminate this concern, urethane has been added around the connector to help prevent water from reaching the…

MAZDA · 2023-11-04

Some vehicles may exhibit the CHECK ENGINE light turning ON with DTC P0AB9:00 (PCM Start Signal System) stored in memory. This may be caused by a PCM Start Signal System error detected due to improper PCM logic. To eliminate this concern, the control software of the PCM has been modified.

CADILLAC · 2020-06-11

Certain vehicles equipped with the hybrid propulsion ? plug-in identifier (RPO HP9) may experience certain circumstances where the engine may not start as planned and the vehicle will run only on battery power. DTC P0AB9 may also set. Dealers are to reprogram the drive motor power inverter module.

CADILLAC · 2020-05-06

This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have Check Engine Light illuminated with an "Engine Unavailable" and "Reduced Propulsion" messages on the Driver Information Center. Technician may find Diagnostic Trouble Codes a P0AB9 and P0AC4. Technician should not clear any Diagnostic Trouble Codes and ensure Global Diagnostic System 2 is up to date. Technician will need to use Global Diagnostic System 2 and check all modules for Diagnostic Trouble Codes. Now use Global Diagnostic System 2 to create freeze frame data from Hybrid Powertrain Control Module and the Engine Control Module and save a report. Technician will need to verify that the vehicle had not been run very low or out of fuel. Also verify the…

CADILLAC · 2019-04-15

This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have Check Engine Light illuminated with an "Engine Unavailable" and ?Reduced Propulsion? messages on the Driver Information Center. Technician may find Diagnostic Trouble Codes a P0AB9 and P0AC4. Technician should not clear any Diagnostic Trouble Codes and ensure Global Diagnostic System 2 is up to date. Technician will need to use Global Diagnostic System 2 and check all modules for Diagnostic Trouble Codes. Now use Global Diagnostic System 2 to create freeze frame data from Hybrid Powertrain Control Module and the Engine Control Module and save a report. Technician will need to verify that the vehicle had not been run very low or out of fuel. Also verify the…

CHEVROLET · 2016-07-15

27660 - Service Update. The engine may stall, followed by a Driver Information Center (DIC) message ?Action Required-Engine Not Available?. This will also cause diagnostic trouble codes P0AB9 (Hybrid/EV System Performance) and P0AC4 (Hybrid/EV Powertrain Control Module Requested MIL Illumination) to set. The engine will not start until the key is cycled. Dealers will reprogram the drive motor power inverter module.

CADILLAC, CHEVROLET · 2014-12-08

This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have Check Engine Light illuminated with an "Engine Unavailable" and ?Reduced Propulsion? messages on the Driver Information Center. Technician may find Diagnostic Trouble Codes a P0AB9 and P0AC4. Technician should not clear any Diagnostic Trouble Codes and ensure Global Diagnostic System 2 is up to date. Technician will need to use Global Diagnostic System 2 and check all modules for Diagnostic Trouble Codes. Now use Global Diagnostic System 2 to create freeze frame data from Hybrid Powertrain Control Module and the Engine Control Module and save a report. Technician will need to verify that the vehicle had not been run very low or out of fuel. Also verify the…

CADILLAC, CHEVROLET · 2014-05-21

This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have Check Engine Light illuminated with an "Engine Unavailable" and "Reduced Propulsion" messages on the Driver Information Center. Technician may find Diagnostic Trouble Codes a P0AB9 and P0AC4. Technician should not clear any Diagnostic Trouble Codes and ensure Global Diagnostic System 2 is up to date. Technician will need to use Global Diagnostic System 2 and check all modules for Diagnostic Trouble Codes. Now use Global Diagnostic System 2 to create freeze frame data from Hybrid Powertrain Control Module and the Engine Control Module and save a report. Technician will need to verify that the vehicle had not been run very low or out of fuel. Also verify the…

CADILLAC, CHEVROLET · 2014-01-08

This Preliminary Information communication provides information to the technician about vehicles that have a Check Engine Malfunction Indicator Lamp on and possibly an Engine Unavailable message on the Driver Information Center. Technician may find Diagnostic Trouble Code?s P0AB9 in set in the Hybrid Powertrain Control Module and P0AC4 set in the Engine Control Module. Technician should not clear any Diagnostic Trouble Codes. Technician will need to verify that the vehicle has not been run very low or out of fuel, customer did not key off while driving, and the engine runs properly and no other engine related or communication related Diagnostic Trouble Codes are present. Technician will need to check for clean and tight ground location G106 and G113.

CHEVROLET · 2013-01-30

This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on after the vehicle has been run out of fuel. Technician may find Diagnostic Trouble Code P0AB9 and or P16E0 stored. Dealer should verify the low fuel condition occurred and then refuel vehicle. After the vehicle has been refueled the technician can clear the Diagnostic Trouble Code. If the Diagnostic Trouble Code resets, technician should follow published Service Information diagnostics.