DTC B1238 [ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS)]

id0602b1800100

DTC

B1238

EHPAS control module

DETECTION CONDITION

• Excessive load to electric power steering oil pump

POSSIBLE CAUSE

• Due to the continuously static steering, being turned to the lock end, or other causes, the internal temperature of the electric power steering oil pump is more than the specified value.

Diagnostic procedure

STEP	INSPECTION		ACTION
1	TURN IGNITION SWITCH OFF AND ALLOW ELECTRIC POWER STEERING OIL PUMP TO COOL DOWN.
2	VERIFY THAT THE SAME DTC IS NOT PRESENT • Turn the ignition switch to the ON position. • Clear the DTC from the memory. (See ON-BOARD DIAGNOSIS [ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS)].) • Is the same DTC present?	Yes	Replace the electric power steering oil pump component, then go to the next step. (See ELECTRIC POWER STEERING OIL PUMP COMPONENT REMOVAL/INSTALLATION [ZY, LF, L3, MZ-CD 1.6 (Y6)].)
2		No	Go to the next step.
3	VERIFY THAT NO OTHER DTCS ARE PRESENT • Are any other DTCs output?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS)].)
3		No	DTC troubleshooting completed.

DTC	B1238		EHPAS control module
DETECTION CONDITION		• Excessive load to electric power steering oil pump
POSSIBLE CAUSE		• Due to the continuously static steering, being turned to the lock end, or other causes, the internal temperature of the electric power steering oil pump is more than the specified value.