DTC U1A4B:43, U1A4B:44, U1A4B:45, U1A4B:46, U1A4B:47, U1A4B:48, U1A4B:49, U1A4B:96 [REAR VEHICLE MONITORING SYSTEM]

id0902z2887800

DESCRIPTION

Rear vehicle monitoring control module (LH) malfunction

DETECTION CONDITION

•  U1A4B:43

―  Rear vehicle monitoring control module (LH) external RAM malfunction

•  U1A4B:44

―  Rear vehicle monitoring control module (LH) internal RAM malfunction

•  U1A4B:45

―  Rear vehicle monitoring control module (LH) internal ROM malfunction

•  U1A4B:46

―  Rear vehicle monitoring control module (LH) internal EEPROM malfunction

•  U1A4B:47

―  Rear vehicle monitoring control module (LH) external check system malfunction

•  U1A4B:48

―  Rear vehicle monitoring control module (LH) communication circuit malfunction

•  U1A4B:49

―  Rear vehicle monitoring control module (LH) voltage control circuit malfunction

•  U1A4B:96

―  Rear vehicle monitoring control module (LH) internal circuit malfunction

POSSIBLE CAUSE

•  Rear vehicle monitoring control module (LH) malfunction

DESCRIPTION	Rear vehicle monitoring control module (LH) malfunction
DETECTION CONDITION	• U1A4B:43 ― Rear vehicle monitoring control module (LH) external RAM malfunction • U1A4B:44 ― Rear vehicle monitoring control module (LH) internal RAM malfunction • U1A4B:45 ― Rear vehicle monitoring control module (LH) internal ROM malfunction • U1A4B:46 ― Rear vehicle monitoring control module (LH) internal EEPROM malfunction • U1A4B:47 ― Rear vehicle monitoring control module (LH) external check system malfunction • U1A4B:48 ― Rear vehicle monitoring control module (LH) communication circuit malfunction • U1A4B:49 ― Rear vehicle monitoring control module (LH) voltage control circuit malfunction • U1A4B:96 ― Rear vehicle monitoring control module (LH) internal circuit malfunction
POSSIBLE CAUSE	• Rear vehicle monitoring control module (LH) malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS REAR VEHICLE MONITORING CONTROL MODULE (LH) • Clear the DTC from rear vehicle monitoring control module using the M-MDS. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) • Switch the ignition to ON and wait for 1.5 s or more. • Perform the rear vehicle monitoring control module DTC inspection using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) • Is the same DTC present?	Yes	Replace the rear vehicle monitoring control module (LH), then go to the next step. (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
1		No	Go to the next step.
2	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
2		No	DTC troubleshooting completed.