Crankshaft Position Sensor; Platinum Pads; 2.7L Coil; 3.2/3.5L Coil - Chrysler 2000 LHS Owner's Manual

8D - 2 IGNITION SYSTEM
DESCRIPTION AND OPERATION (Continued)
Fig. 1 Platinum Pads
1 – APPLY ANTI-SEIZE COMPOUND HERE ONLY
2 – PLATINUM SPARK SURFACE
the coil, boot, and fasteners is known as the ignition
coil assembly. The Powertrain Control Module (PCM)
determines which coil to charge and fire at the cor-
rect time.
Fig. 2 2.7L Coil
OPERATION
The Auto Shutdown (ASD) relay provides battery
voltage to the ignition coil. The PCM provides a
ground contact (circuit) for energizing the coil. When
the PCM breaks the contact, the energy in the coil
primary transfers to the secondary causing the
spark. The PCM will de-energize the ASD relay if it
does not receive the crankshaft position sensor and
camshaft position sensor inputs. For limp home capa-
bility, the engine can run on crankshaft sensor input
only. Refer to Auto Shutdown (ASD) Relay—PCM
Output, in this section for relay operation.
Fig. 3 3.2/3.5L Coil
The coil's low primary resistance (0.4 - 0.6 ohm)
allows the PCM to fully charge the coil for each fir-
ing. There is a coil capacitor added to each bank of
cylinders for radio noise suppression.
Fig. 4 Coil Capacitor
1 – IGNITION COIL CAPACITOR

CRANKSHAFT POSITION SENSOR

DESCRIPTION
The crankshaft sensor is located on the passengers
side of the transmission housing, above the differen-
tial housing (Fig. 6). The bottom of the sensor is posi-
tioned next to the drive plate.
LH