DTC U0001-88; U0100-00; U0101-00; U0121-00; U0151-00; U0155-00; Unit Communication Error (HS-Can): Notes

DTC U0001-88; U0100-00; U0101-00; U0121-00; U0151-00; U0155-00; UNIT COMMUNICATION ERROR (HS-CAN) - DETECTION CONDITION & POSSIBLE CAUSE

Description	U0001:88 Unit communication error (HS-CAN) U0100:00 Communication error with PCM U0101:00 Communication error with TCM U0121:00 Communication error with DSC HU/CM U0151:00 Communication error with SAS control module U0155:00 Communication error with instrument cluster
Detection condition	U0001:88 Electric parking brake control module detects the CAN bus communication line (HS-CAN) malfunction 10 times continuously with the ignition switched ON (engine off or on). U0100:00 Electric parking brake control module could not receive the CAN signal from the PCM with the ignition switched ON (engine off or on). U0101:00 Electric parking brake control module could not receive the CAN signal from the TCM with the ignition switched ON (engine off or on). U0121:00 Electric parking brake control module could not receive the CAN signal from the DSC HU/CM with the ignition switched ON (engine off or on). U0151:00 Electric parking brake control module could not receive the CAN signal from the SAS control module with the ignition switched ON (engine off or on). U0155:00 Electric parking brake control module could not receive the CAN signal from the instrument cluster with the ignition switched ON (engine off or on).
Fail-safe	U0001:88 Not applicable
Description	U0001:88 Unit communication error (HS-CAN) U0100:00 Communication error with PCM U0101:00 Communication error with TCM U0121:00 Communication error with DSC HU/CM U0151:00 Communication error with SAS control module U0155:00 Communication error with instrument cluster
	U0100:00 Not applicable U0101:00 Not applicable U0121:00 Not applicable U0151:00 Not applicable U0155:00 Not applicable
Possible cause	Malfunction in CAN bus communication line Malfunction in CAN communication line between PCM and electric parking brake control module Malfunction in CAN communication line between TCM and electric parking brake control module Malfunction in CAN communication line between DSC HU/CM and electric parking brake control module Malfunction in CAN communication line between SAS control module and electric parking brake control module Malfunction in CAN communication line between instrument cluster and electric parking brake control module
System wiring diagram	Not applicable