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