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Diagnostic Trouble Code (DTC): List

Code Description & trouble part Failure detection pattern Warning light/indicator light Reference
  1. Malfunction indicator light
  2. Auto Start Stop warning light (yellow)
1 2
P0512 STARTER (SWITCH) REQUEST CIRCUIT Detection by a single system (Primary Failure) - ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0512 STARTER (SWITCH) REQUEST CIRCUIT .
P06E9 ENGINE STARTER PERFORMANCE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P06E9 ENGINE STARTER PERFORMANCE .
P0A12 DC/DC CONVERTER ENABLE CIRCUIT LOW ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0A12 DC/DC CONVERTER ENABLE CIRCUIT LOW .
P0A13 DC/DC CONVERTER ENABLE CIRCUIT HIGH ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0A13 DC/DC CONVERTER ENABLE CIRCUIT HIGH .
P0A94 DC/DC CONVERTER PERFORMANCE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0A94 DC/DC CONVERTER PERFORMANCE .
P0B0D AUXILIARY TRANSMISSION FLUID PUMP MOTOR CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0B0D AUXILIARY TRANSMISSION FLUID PUMP MOTOR CONTROL MODULE .
P0C2C ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE FEEDBACK SIGNAL RANGE/PERFORMANCE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0C2C ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE FEEDBACK SIGNAL RANGE/PERFORMANCE .
P0C2D ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE FEEDBACK SIGNAL LOW ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0C2D ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE FEEDBACK SIGNAL LOW .
P0C2E ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE FEEDBACK SIGNAL HIGH ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0C2E ELECTRIC/AUXILIARY TRANSMISSION FLUID PUMP CONTROL MODULE FEEDBACK SIGNAL HIGH .
P1518 STARTER SWITCH CIRCUIT LOW ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1518 STARTER SWITCH CIRCUIT LOW .
P1567 AUDIO SUPPLY VOLTAGE MONITORING CIRCUIT LOW - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1567 AUDIO SUPPLY VOLTAGE MONITORING CIRCUIT LOW .
P1568 AUDIO SUPPLY VOLTAGE MONITORING CIRCUIT HIGH - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1568 AUDIO SUPPLY VOLTAGE MONITORING CIRCUIT HIGH .
P161D ELECTRIC FLUID PUMP (CVT) RELAY CIRCUIT LOW - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P161D ELECTRIC FLUID PUMP (CVT) RELAY CIRCUIT LOW .
P1625 AUTO START REQUEST CIRCUIT LOW ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1625 AUTO START REQUEST CIRCUIT LOW .
P1626 AUTO START REQUEST CIRCUIT HIGH ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1626 AUTO START REQUEST CIRCUIT HIGH .
P1739 ELECTRIC FLUID PUMP (CVT) DRIVE CIRCUIT ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1739 ELECTRIC FLUID PUMP (CVT) DRIVE CIRCUIT .
P1A17 DC/DC CONVERTER 2 BOOST COMMAND SIGNAL LOW - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A17 DC/DC CONVERTER 2 BOOST COMMAND SIGNAL LOW .
P1A18 DC/DC CONVERTER 2 BOOST COMMAND SIGNAL HIGH - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A18 DC/DC CONVERTER 2 BOOST COMMAND SIGNAL HIGH .
P1A28 DC/DC CONVERTER 2 BOOST PERFORMANCE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A28 DC/DC CONVERTER 2 BOOST PERFORMANCE .
P1A29 DC/DC CONVERTER 2 INPUT 1 VOLTAGE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A29 DC/DC CONVERTER 2 INPUT 1 VOLTAGE .
P1A2A DC/DC CONVERTER 2 INPUT 2 VOLTAGE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A2A DC/DC CONVERTER 2 INPUT 2 VOLTAGE .
P1A2B DC/DC CONVERTER 2 OUTPUT 1 VOLTAGE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A2B DC/DC CONVERTER 2 OUTPUT 1 VOLTAGE .
P1A2C DC/DC CONVERTER 2 OUTPUT 2 VOLTAGE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A2C DC/DC CONVERTER 2 OUTPUT 2 VOLTAGE .
P1A2D DC/DC CONVERTER 2 CIRCUIT 1 TEMPERATURE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A2D DC/DC CONVERTER 2 CIRCUIT 1 TEMPERATURE .
P1A2E DC/DC CONVERTER 2 CIRCUIT 2 TEMPERATURE - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A2E DC/DC CONVERTER 2 CIRCUIT 2 TEMPERATURE .
P1A2F DC/DC CONVERTER 2 INTERNAL CIRCUIT - - Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P1A2F DC/DC CONVERTER 2 INTERNAL CIRCUIT .
P257E Engine Hood Switch Circuit Low ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P257E ENGINE HOOD SWITCH CIRCUIT LOW .
P257F Engine Hood Switch Circuit High ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P257F ENGINE HOOD SWITCH CIRCUIT HIGH .
U0073 CONTROL MODULE COMMUNICATION BUS OFF ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF .
U0100 LOST COMMUNICATION WITH ECM/PCM "A" ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" .
U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE .
U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE .
U0131 LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0131 LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE .
U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE .
U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE .
U0164 LOST COMMUNICATION WITH HVAC CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0164 LOST COMMUNICATION WITH HVAC CONTROL MODULE .
U0401 INVALID DATA RECEIVED FROM ECM/PCM "A" ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A" .
U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAG NOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE .
U0417 INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0417 INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE .
U0420 INVALID DATA RECEIVED FROM POWER STEERING CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0420 INVALID DATA RECEIVED FROM POWER STEERING CONTROL MODULE .
U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE .
U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE .
U0424 INVALID DATA RECEIVED FROM HVAC CONTROL MODULE ◦ ◦ Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0424 INVALID DATA RECEIVED FROM HVAC CONTROL MODULE .
NOTE: Failure detection pattern indicates a particular system has detected a failure (DTC) by itself the Primary Failure, or it has recorded a DTC as a Secondary Failure in response to a failure detected by another system.
Secondary Failure is as follows: If System A has detected a failure of Part X (Primary Failure), System B obtains that information and then detects a failure of Part X (Secondary Failure).
Therefore, it is important to perform the diagnosis for the DTC detected by System A (Primary Failure). For the DTC detected by System B (Secondary Failure) occurred as a chain reaction, therefore performing this diagnosis is not required.
Detection by a single system means the system has detected a failure by itself. The diagnosis for such a failure (Primary Failure) needs to be performed first.
Detection as a chain reaction or Secondary Failure by a single system means that a DTC may be recorded as a chain reaction (Secondary Failure) or by a single system (Primary Failure) depending on circumstances. If no failure is detected at the same control module by any other systems, the DTC is detected by a single system and the diagnosis for it needs to be prioritized as the Primary Failure.
If another DTC is detected at the same control module by any other system, the DTC detected by this (other) system is a result of a chain reaction (Secondary Failure) and the diagnosis for the DTC detected by the originating system needs to be prioritized as the Primary Failure.
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