DTC B1003:11/B1003:12/B1003:13/B1003:19/B1003:1A [ACTIVE BONNET]

id0802f1002400

DESCRIPTION	•  DTC B1003:11: Active bonnet actuator (LH) circuit short to ground •  DTC B1003:12: Active bonnet actuator (LH) circuit short to power supply •  DTC B1003:13: Active bonnet actuator (LH) circuit open circuit or resistance high •  DTC B1003:19: Short circuit in active bonnet actuator (LH) and (RH) circuits •  DTC B1003:1A: Active bonnet actuator (LH) circuit resistance low
DETECTION CONDITION	Warning •  Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the diagnostic procedure. •  Resistance value of active bonnet actuator (LH) circuit is other than 0.81―9.40 ohms •  Malfunction in wiring harness between active bonnet actuator (LH) and active bonnet control module
POSSIBLE CAUSE	•  Active bonnet actuator (LH) connector connection malfunction (partial disconnection) •  Active bonnet actuator (LH) connector malfunction •  Short to ground in wiring harness between active bonnet actuator (LH) and active bonnet control module •  Open circuit in wiring harness between active bonnet actuator (LH) and active bonnet control module •  Short circuit in wiring harness between active bonnet actuator (LH) and (RH) circuits •  Short circuit in wiring harness between active bonnet actuator (LH) circuits to power supply and ground •  Short to power supply in wiring harness between active bonnet actuator (LH) and active bonnet control module •  Active bonnet actuator (LH) malfunction •  Active bonnet control module malfunction
SYSTEM WIRING DIAGRAM

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT CONNECTION CONDITION OF ACTIVE BONNET ACTUATOR (LH) Warning •  Handling the component parts improperly can accidentally operate the active bonnet actuator, which may seriously injure you. Read the service warnings and cautions before handling the component parts of the active bonnet. (See ACTIVE BONNET SERVICE WARNINGS.) (See ACTIVE BONNET SERVICE CAUTIONS.) •  Switch the ignition to LOCK. •  Disconnect the negative battery cable and wait 1 min or more. •  Is active bonnet actuator (LH) connector correctly connected?	Yes	Go to the next step.
		No	Connect the active bonnet actuator (LH) connector correctly. Go to Step 9.
2	ACTIVE BONNET ACTUATOR (LH) CONNECTOR INSPECTION •  Disconnect the active bonnet actuator (LH) connector. •  Inspect the active bonnet actuator (LH) connector. (Corrosion, damage, and disconnected pins) •  Is there any malfunction in the active bonnet actuator (LH) connector?	Yes	Replace the malfunctioning part, then go to Step 9.
		No	Go to the next step.
3	INSPECT ACTIVE BONNET ACTUATOR (LH) CIRCUIT FOR SHORT TO GROUND •  Disconnect the active bonnet actuator (RH) connector. •  Remove the partition board. (See PARTITION BOARD REMOVAL/INSTALLATION.) •  Remove the trunk side trim (RH). (See TRUNK SIDE TRIM REMOVAL/INSTALLATION.) •  Disconnect all of the active bonnet control module connectors. (See ACTIVE BONNET CONTROL MODULE REMOVAL/INSTALLATION.) •  Inspect for continuity between the following terminals (vehicle wiring harness side) and body ground. ―  Active bonnet control module terminal terminal 1G ―  Active bonnet control module terminal terminal 1E Note •  Inspect for continuity while shaking the wiring harness between the active bonnet control module and the active bonnet actuator (LH). •  Is there continuity?	Yes	Replace the wiring harness, then go to Step 9.
		No	Go to the next step.
4	INSPECT ACTIVE BONNET ACTUATOR (LH) CIRCUIT FOR OPEN CIRCUIT •  Verify that the active bonnet actuator and active bonnet control module connectors are disconnected. •  Inspect the wiring harness between the following terminals (vehicle wiring harness side) for continuity. ―  Active bonnet actuator (LH) terminal A and active bonnet control module terminal 1G ―  Active bonnet actuator (LH) terminal B and active bonnet control module terminal 1E Note •  Inspect for continuity while shaking the wiring harness between the active bonnet control module and the active bonnet actuator (LH). •  Is there continuity?	Yes	Go to the next step.
		No	Replace the wiring harness, then go to Step 9.
5	SHORT CIRCUIT TO ACTIVE BONNET ACTUATOR (LH) AND (RH) CIRCUITS INSPECTION •  Verify that the active bonnet actuator and active bonnet control module connectors are disconnected. •  Inspect between the following terminals (vehicle wiring harness side) for continuity. ―  Active bonnet control module terminals 1G and 1A ―  Active bonnet control module terminals 1G and 1C ―  Active bonnet control module terminals 1E and 1A ―  Active bonnet control module terminals 1E and 1C Note •  Inspect for continuity while shaking the wiring harness between the active bonnet control module and the active bonnet actuator. •  Is there continuity?	Yes	Replace the wiring harness, then go to Step 9.
		No	Go to the next step.
6	INSPECT FOR SHORT CIRCUIT BETWEEN POWER SUPPLY AND GROUND CIRCUITS OF ACTIVE BONNET ACTUATOR (LH) •  Verify that the active bonnet actuator and active bonnet control module connectors are disconnected. •  Inspect between the following terminals (vehicle wiring harness side) for continuity. ―  Active bonnet control module terminals 1G and 1E Note •  Inspect for continuity while shaking the wiring harness between the active bonnet control module and the active bonnet actuator (LH). •  Is there continuity?	Yes	Replace the wiring harness, then go to Step 9.
		No	Go to the next step.
7	INSPECT ACTIVE BONNET ACTUATOR (LH) CIRCUIT FOR SHORT TO POWER SUPPLY •  Verify that the active bonnet actuator and active bonnet control module connectors are disconnected. •  Connect the negative battery cable. •  Switch the ignition ON. •  Measure the voltage at the following terminals (vehicle wiring harness side). ―  Active bonnet control module terminal 1G ―  Active bonnet control module terminal 1E Note •  Measure the voltage while shaking the wiring harness between the active bonnet control module and the active bonnet actuator (LH). •  Is the voltage 0 V?	Yes	Go to the next step.
		No	Replace the wiring harness, then go to Step 9.
8	ACTIVE BONNET ACTUATOR (LH) INSPECTION •  Switch the ignition to LOCK. •  Disconnect the negative battery cable and wait 1 min or more. •  Connect the active bonnet control module connector. •  Connect the active bonnet actuator (RH) connector. •  Connect the SST (Fuel and thermometer checker) or apply 2-ohm resistance to the active bonnet actuator (LH) connector terminals A—B. •  Set the SST (Fuel and thermometer checker) to 2 ohm. •  Connect the negative battery cable. •  Switch the ignition ON. •  Clear the DTC for the active bonnet control module using the M-MDS. (See CLEARING DTC [ACTIVE BONNET].) •  Perform the active bonnet control module DTC inspection using the M-MDS. (See DTC INSPECTION [ACTIVE BONNET].) •  Is the same DTC displayed?	Yes	Go to the next step.
		No	Replace the active bonnet actuator (LH). (See ACTIVE BONNET ACTUATOR REMOVAL/INSTALLATION.) Go to the next step.
9	PERFORM DTC INSPECTION FOR ACTIVE BONNET CONTROL MODULE •  Switch the ignition to LOCK. •  Disconnect the negative battery cable and wait 1 min or more. •  Disconnect the SST (Fuel and thermometer checker) or the 2 ohm resistance. •  Connect the active bonnet actuator (LH) connector. •  Connect the negative battery cable. •  Switch the ignition ON. •  Clear the DTC for the active bonnet control module using the M-MDS. (See CLEARING DTC [ACTIVE BONNET].) •  Perform the active bonnet control module DTC inspection using the M-MDS. (See DTC INSPECTION [ACTIVE BONNET].) •  Is the same DTC displayed?	Yes	Replace the active bonnet control module. (See ACTIVE BONNET CONTROL MODULE REMOVAL/INSTALLATION.)
		No	DTC troubleshooting completed.