DTC C2005:19 [ELECTRIC PARKING BRAKE]

id040257251800

Description	Electric parking brake motor gear unit (RH) circuit malfunction
Detection condition	• Electric parking brake control module detects that the current flowing to the electric parking brake motor gear unit (RH) circuit is higher than the threshold.
Fail-safe	Not applicable
Possible cause	• Electric parking brake motor gear unit (RH) connector or terminal malfunction • Electric parking brake control module connector or terminal malfunction • Short to ground in wiring harness between the following terminals: ? Electric parking brake motor gear unit (RH) terminal A—Electric parking brake control module terminal 1P ? Electric parking brake motor gear unit (RH) terminal B—Electric parking brake control module terminal 1M • Short to power supply in wiring harness between the following terminals: ? Electric parking brake motor gear unit (RH) terminal A—Electric parking brake control module terminal 1P ? Electric parking brake motor gear unit (RH) terminal B—Electric parking brake control module terminal 1M • Short circuit between electric parking brake motor gear unit (RH) circuits • Electric parking brake motor gear unit (RH) malfunction • Electric parking brake control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY OTHER ELECTRIC PARKING BRAKE CONTROL MODULE DTCs • Clear the DTC for the electric parking brake control module using the M-MDS. (See CLEARING DTC [ELECTRIC PARKING BRAKE].) • Retrieve the electric parking brake control module DTCs using the M-MDS. (See DTC INSPECTION [ELECTRIC PARKING BRAKE].) • Are any DTCs other than DTC C2005:19 displayed?	Yes	If a procedure which verifies other DTCs is included in the diagnostic procedure of the displayed DTC: • Go to the next step. If a procedure which verifies other DTCs is not included in the diagnostic procedure of the displayed DTC: • Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [ELECTRIC PARKING BRAKE].)
1		No	Go to the next step.
2	INSPECT ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (RH) CONNECTOR CONDITION • Switch the ignition OFF. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the electric parking brake motor gear unit (RH) connector. (See ELECTRIC PARKING BRAKE MOTOR GEAR UNIT REMOVAL/INSTALLATION.) • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to Step 8.
3	INSPECT ELECTRIC PARKING BRAKE CONTROL MODULE CONNECTOR CONDITION • Disconnect the electric parking brake control module connector. (See ELECTRIC PARKING BRAKE CONTROL MODULE REMOVAL/INSTALLATION.) • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
3		No	Repair or replace the connector, then go to Step 8.
4	INSPECT ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (RH) CIRCUIT FOR SHORT TO GROUND • Verify that the electric parking brake motor gear unit (RH) and electric parking brake control module connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side) and body ground: ? Electric parking brake motor gear unit (RH) terminal A ? Electric parking brake motor gear unit (RH) terminal B • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Electric parking brake motor gear unit (RH) terminal A—Electric parking brake control module terminal 1P • Electric parking brake motor gear unit (RH) terminal B—Electric parking brake control module terminal 1M If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to ground. Go to Step 8.
4		No	Go to the next step.
5	INSPECT ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (RH) CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the electric parking brake motor gear unit (RH) and electric parking brake control module connectors are disconnected. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off or on). • Measure the voltage at the following terminals (wiring harness-side): ? Electric parking brake motor gear unit (RH) terminal A ? Electric parking brake motor gear unit (RH) terminal B • Is the voltage 0 V?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Electric parking brake motor gear unit (RH) terminal A—Electric parking brake control module terminal 1P • Electric parking brake motor gear unit (RH) terminal B—Electric parking brake control module terminal 1M If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to power supply. Go to Step 8.
6	INSPECT ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (RH) CIRCUITS FOR SHORT CIRCUIT • Switch the ignition OFF. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Verify that the electric parking brake motor gear unit (RH) and electric parking brake control module connectors are disconnected. • Inspect for continuity between electric parking brake motor gear unit (RH) terminals A and B (wiring harness-side). • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Electric parking brake motor gear unit (RH) terminal A—Electric parking brake control module terminal 1P • Electric parking brake motor gear unit (RH) terminal B—Electric parking brake control module terminal 1M If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to each other. Go to Step 8.
6		No	Go to the next step.
7	VERIFY IF MALFUNCTIONING LOCATION IS ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (RH) DEPENDING ON REPEATABILITY • Always reconnect all disconnected connectors. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Clear the DTC for the electric parking brake control module using the M-MDS. (See CLEARING DTC [ELECTRIC PARKING BRAKE].) • Perform the following procedure 3 times or more. ? Pull up the electric parking brake switch to operate the electric parking brake. ? Press down the electric parking brake switch to release the electric parking brake. • Retrieve the electric parking brake control module DTCs using the M-MDS. (See DTC INSPECTION [ELECTRIC PARKING BRAKE].) • Is the same DTC displayed?	Yes	Replace the electric parking brake motor gear unit (RH), then go to the next step. (See ELECTRIC PARKING BRAKE MOTOR GEAR UNIT REMOVAL/INSTALLATION.)
7		No	Go to Step 9.
8	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Clear the DTC for the electric parking brake control module using the M-MDS. (See CLEARING DTC [ELECTRIC PARKING BRAKE].) • Perform the following procedure 3 times or more. ? Pull up the electric parking brake switch to operate the electric parking brake. ? Press down the electric parking brake switch to release the electric parking brake. • Retrieve the electric parking brake control module DTCs using the M-MDS. (See DTC INSPECTION [ELECTRIC PARKING BRAKE].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the electric parking brake control module. (See ELECTRIC PARKING BRAKE CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
8		No	Go to the next step.
9	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [ELECTRIC PARKING BRAKE].)
9		No	DTC troubleshooting completed.