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COMBINATION METER ASSEMBLY TSB Revision CHASSIS ELECTRICAL 54A-56 DTC U1100: Powertrain Control Module Time-out (Related to Engine) DTC U1101: Powertrain Control CAUTION If DTC U1100 or U1101 is set in the combination CAUTION Whenever the ECU is replaced, ensure that the . CIRCUIT OPERATION . DTC SET CONDITION U1100 • The combination meter receives engine control system-related signals from the powertrain con- U1101 • The combination meter receives A/T control sys- tem-related signal from the powertrain control . TECHNICAL DESCRIPTION (COMMENT) CAUTION If the ignition switch is turned to the ON position Current trouble • Connector(s) or wiring harness in the CAN bus lines between the powertrain control module and Past trouble • Carry out diagnosis with particular emphasis on connector(s) or wiring harness in the CAN bus NOTE: For a past trouble, you may not find it by − How to Cope with Intermit- tent Malfunction .) and check the CAN bus lines. You can narrow down the possible . TROUBLESHOOTING HINTS • The wiring harness or connectors may have loose, corroded, or damaged terminals, or termi- • Malfunction of powertrain control module. • Malfunction of combination meter |