How to Fix GWM Tank 300 Transmission(GA8HP50Z) Error Codes

Below is a comprehensive list of all the error codes for the GA8HP50Z fitted on the GWM Tank 300. Realistically speaking, the Tank 300 is a complex car and the best diagnostic and repair path is using the OEM documentation. Below is a screenshot from the manual

 

Here is the List of all the Fault Codes Covered

Fault Code	OEM Description	Fault Category
P097311	Clutch A pressure regulator short circuit to ground	Clutch Pressure Regulator
P097412	Clutch A pressure regulator short circuit to power	Clutch Pressure Regulator
P097213	Clutch A pressure regulator open circuit	Clutch Pressure Regulator
P097611	Clutch B pressure regulator short circuit to ground	Clutch Pressure Regulator
P097712	Clutch B pressure regulator short circuit to power	Clutch Pressure Regulator
P097514	Clutch B pressure regulator open circuit	Clutch Pressure Regulator
P097911	Clutch C pressure regulator short circuit to ground	Clutch Pressure Regulator
P098012	Clutch C pressure regulator short circuit to power	Clutch Pressure Regulator
P097914	Clutch C pressure regulator open circuit	Clutch Pressure Regulator
P098211	Clutch D pressure regulator short circuit to ground	Clutch Pressure Regulator
P098312	Clutch D pressure regulator short circuit to power	Clutch Pressure Regulator
P098213	Clutch D pressure regulator open circuit	Clutch Pressure Regulator
P098511	Clutch E pressure regulator short circuit to ground	Clutch Pressure Regulator
P098612	Clutch E pressure regulator short circuit to power	Clutch Pressure Regulator
P098514	Clutch E pressure regulator open circuit	Clutch Pressure Regulator
P275911	Lock-up clutch pressure regulator short circuit to ground	Lock-Up Clutch Control
P275912	Lock-up clutch pressure regulator short circuit to power	Lock-Up Clutch Control
P276113	Lock-up clutch pressure regulator open circuit	Lock-Up Clutch Control
P074811	System pressure regulator short circuit to ground	Hydraulic Pressure Control
P074812	System pressure regulator short circuit to power	Hydraulic Pressure Control
P074813	System pressure regulator open circuit	Hydraulic Pressure Control
P084F11	Parking lock solenoid short circuit to ground	Parking Lock System
P084F12	Parking lock solenoid short circuit to power	Parking Lock System
P084F13	Parking lock solenoid open circuit	Parking Lock System
P085002	Parking lock mechanical failure	Parking Lock System
P071514	Input speed sensor short/open circuit	Speed Sensor
P071512	Input speed sensor short circuit to high	Speed Sensor
P072014	Output speed sensor short/open circuit	Speed Sensor
P072012	Output speed sensor short circuit to high	Speed Sensor
P071211	Transmission oil temperature sensor short circuit to ground	Temperature Sensor
P071312	Transmission oil temperature sensor short circuit to power	Temperature Sensor
P071013	Transmission oil temperature sensor open circuit	Temperature Sensor
P070004	Transmission control module monitoring fault	TCU / Internal Electronics
P062F04	EEPROM initialization error	TCU / Internal Electronics
P060141	EEPROM checksum error	TCU / Internal Electronics
P061312	Watchdog / Main chip fault	TCU / Internal Electronics
P063498	TCU overheat shutdown	TCU / Internal Electronics
U007588	CAN bus fault	Communication Network
U007508	Global CAN communication loss	Communication Network
U010087	Loss of communication with ECM	Communication Network
U012287	Loss of communication with ABS/ESP	Communication Network
U014087	Loss of communication with BCM	Communication Network
P074107	Lock-up clutch slipping	Clutch Slip
P270007	Clutch A slipping	Clutch Slip
P270107	Clutch B slipping	Clutch Slip
P270207	Clutch C slipping	Clutch Slip
P270307	Clutch D slipping	Clutch Slip
P270407	Clutch E slipping	Clutch Slip
P073000	Global gear ratio fault	Gear Ratio Control
P07DC07	Gear ratio fault when leaving 1st gear	Gear Ratio Control
P07DD07	Gear ratio fault when leaving 2nd gear	Gear Ratio Control
P07DE07	Gear ratio fault when leaving 3rd gear	Gear Ratio Control
P07DF07	Gear ratio fault when leaving 4th gear	Gear Ratio Control
P278798	Clutch overheating level 1	Overheating
P278797	Clutch overheating level 2	Overheating
P278796	Clutch overheating level 3	Overheating
P278795	Clutch overheating level 4	Overheating
P278794	Clutch overheating level 5	Overheating
P061A02	Engine torque request error	Engine / Torque Management
P061B64	Engine torque request error	Engine / Torque Management
P021964	Engine overspeed	Engine / Torque Management
P279D64	Four-wheel-drive ratio switching failure	4WD System
U040300	Low-range four-wheel-drive failure	4WD System
P082601	Paddle shifter malfunction	Gear Selection System
P170772	Parking lock accidentally disengaged	Gear Selection System
P170774	Parking lock accidentally disengaged	Gear Selection System
U110088	TCU configuration not programmed	Configuration
U110089	Drive mode configuration error	Configuration