THEFT-DETERRENT CONTROL MODULE INSPECTION

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1.  Remove the theft-deterrent control module without disconnecting the connectors.

2.  Measure the voltage at the theft-deterrent control module terminals as indicated below.

3.  Disconnect the theft-deterrent control module connectors before inspecting for continuity at terminals B.

4.  If not as specified, inspect the parts listed under “Action.”

•  If the parts and wiring harnesses are okay but the system still does not work properly, replace the theft-deterrent control module.

Terminal Voltage Table (Reference)

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Terminal	Signal	Connected to	Test condition		Voltage (V)/continuity	Action
B	Theft-deterrent control module ground	GND	Under any condition: inspect for continuity to ground		Yes	—
E	Theft-deterrent horn on/off	Theft-deterrent horn relay	Theft-deterrent system alarm 1: Other		B+	•  Inspect theft-deterrent horn relay •  Inspection related harness
			Theft-deterrent system alarm 1: Active		Alternates 0 and B+
F	Key reminder switch on/off	Key reminder switch	Key reminder switch on		B+	•  Inspect key reminder switch •  Inspect related harness
			Key reminder switch off		Below 0.1
N	Unlock	Driver’s door lock-link switch	Driver’s door lock-link switch locked: inspect for continuity to ground		No	•  Inspect driver’s door lock-link switch •  Inspect related harness
			Driver’s door lock-link switch unlocked: inspect for continuity to ground		Yes
O	Lock/unlock	Rear door lock-link switch	Rear door closed	Passenger’s and rear door lock-link switch locked: inspect for continuity to ground	No	•  Inspect rear door lock-link switch •  Inspect related harness
				Passenger’s and rear door lock-link switch unlocked: inspect for continuity to ground	Yes
P	Bonnet open/closed	Bonnet switch	Bonnet switch on: inspect for continuity to ground		Yes	•  Inspect bonnet switch (See BONNET SWITCH INSPECTION) •  Inspect related harness
			Bonnet switch off: inspect for continuity to ground		No
Q	Door key cylinder switch	•  Driver’s door key cylinder switch •  Passenger’s door key cylinder switch •  Door lock control module	Driver’s or passenger’s door locked with key		2.5	•  Inspect driver’s or passenger’s door key cylinder switch (See FRONT DOOR LATCH AND LOCK ACTUATOR INSPECTION) •  Inspect related harness
			Driver’s or passenger’s door unlocked with key		Below 0.1
			Other		5
S	Security light on/off	Security light	Security light on		Below 0.1	•  Inspect security light •  Inspect related harness
			Security light off		B+
T	Door open/closed	Door switch	Any door open: inspect for continuity to ground		Yes	•  Inspect door switch •  Inspect related harness
			All doors closed: inspect for continuity to ground		No
U	Flasher input	•  Turn switch •  Hazard warning switch •  Flasher unit	Theft-deterrent system alarm 1: Active		Alternates 0 and B+	•  Inspect turn switch •  Inspect hazard warning switch •  Inspect flasher unit •  Inspect related harness
			Theft-deterrent system alarm 1: Other		Below 0.1
W	IG1	ENGINE 15 A fuse	Engine switch at ON position		B+	•  Inspect engine switch •  ENGINE 15 A fuse •  Inspect related harness
			Engine switch at LOCK or ACC position		Below 0.1
X	Power supply	ROOM 15 A fuse	Under any condition		B+	•  ROOM 15 A fuse