My car starts but the lights on the dashboard light up an...

Hello, Welcome to JustAnswer. name is \*\*\*\*\* \*\*\*\*\* I am an independent Auto Technician. Sorry to hear you are having a problem with your Vehicle , I will do my best to assist you with this issue.A live optional phone call will be automatically offered by JustAnswer, But I can not do calls at the moment we can carry on with text?It may take a moment for me to get back to you as I may have to look up information about your concern, So I really appreciate your patience.Do you have your VIN number handy for me so I can look up your vehicle?May I ask who I have the pleasure of chatting with?Greg.

My name is \*\*\*\*\* \*\*\*\*\* what is the VIN #I will work with the messages

Hi carol nice to meet you. For the moment we don’t need the vin number( Chassis Number a 17 digit number) When the [engine](/topics-engine-toyota/) is running you have all the warning lights on like check engine ABS, Trac, Et on? Did your electrician not hook up a diagnostic scan tool and check for malfunction codes? Greg

MRO53REH104529315, YES they ddo scan and it comes up with an error code to the engine with loosing connection, cant remember the codeThey normally change some fuse and it works for about a month or so and happens again this is the 4th time and I am getting fustrated

Carol did the code start with a U or a P? Can you remember

Can't remember

Ok no problem carol but if you can get to autozone or any parts store that does free diagnostic test and let me know what the code is? Most likely a U code which is a communication code from a wiring issue or a bad control module? Codes will help us. Rgds Greg

Ok, will do

Ok Carole stay safe and catch you later on. Greg

Just wanted to mention that this only happens when I park the car and go to restart, no problem otherwise.

Ok still let’s check for malfunction codes and see what is happening

If you need to continue or if there is anything else I can assist with at all, let me know here and I will be happy to assist further! If any part of my response is confusing or needing more detail, please reply and let me know. I am not done until you are happy. Kind regards Greg

U0129 code,lose communications with [brakes](/topics-brake-toyota/) control moduleIs the code I getting

DTC Code DTC Name U0129 Lost Communication with Skid Control ECU DESCRIPTIONThe ECM and skid control ECU communicate with each other via CAN communication.If there is a problem with this communication, the ECM stores this DTC.DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory U0129 Lost Communication with Skid Control ECU All of following conditions met for 1 second or more:(1 trip detection logic)Ignition switch ON+B terminal voltage 8 V or higherNo communication between ECM and skid control ECUWire harness (CANL and CANH circuits)ECMSkid control ECUComes on DTC stored Table 1. DTC Detection Drive Pattern DTC No. DTC Detection Drive Pattern U0129 Ignition switch ON WIRING DIAGRAMA012J9OE05 Table 2. \*a Skid Control ECU (Brake Actuator Assembly) \*b CAN Communication Line CAUTION / NOTICE / HINTTip: When a DTC indicating a CAN communication system malfunction is output, repair the CAN communication system first.Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.If the CAN communication system is malfunctioning, there is no data output from the ECM. In this case, some of the freeze frame data will not be correct and not identical to the ECM data. However the ECM data is correct.PROCEDURECHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC U0129)Connect the GTS to the DLC3.Turn the ignition switch to ON and turn the GTS on.Enter the following menus: System Select / Health Check.Read the DTCs.Result Result Proceed to DTC U0129 is output A DTC U0129 and other DTCs are output B Tip: If any DTCs other than U0129 are output, troubleshoot those DTCs first.

Got through, thanks

Need anything let me know

Just one more question, is it possible that installing an independent alarm on my car which has a smart key would have been caused the problem.