|DTC Code||DTC Name|
The battery supplies electricity to the TCM even when the ignition switch is off. This power allows the TCM to store data such as the learned value of actuators, DTC history and freeze frame data. If the battery voltage falls below a minimum level, these memories are cleared and the TCM determines that there is a malfunction in the power supply circuit. If an open or short circuit occurs in the +B circuit while the ignition switch is ON, the TCM stops operating immediately.
|DTC No.||Detection Item||DTC Detection Condition||Trouble Area||MIL||Warning Indicate||Memory|
+B terminal voltage 7.0 V or less for 0.5 seconds or more
(1-trip detection logic)
||Comes on||Comes on||DTC stored|
|*a||ECU-B NO. 2|
CAUTION / NOTICE / HINT
Inspect the fuses for circuits related to this system before performing the following procedure.
CHECK HARNESS AND CONNECTOR (TCM - BATTERY, BODY GROUND)
Disconnect the TCM connectors.
Front view of wire harness connector
Measure the resistance according to the value(s) in the table below.
Measure the voltage according to the value(s) in the table below.
REPAIR OR REPLACE HARNESS OR CONNECTOR
Perform the initialization and learning procedure.
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