PleasureCraft Engine Group 5.0L, Diagnostic Manual, Page: 274 / 337

5 - 132 Diagnosis 5.0/5.7/6.0/8.1L
MEFI 4 - PCM
CMP Sensor
Signal Depspower CKP Sensor
Signal DepsLo
Camshaft
Position
(CMP)
Sensor
(5.0/5.7L)
Solid
State
17 18
16
32 J2
C
A
B
C
A
B
Crankshaft
Position
(CKP)
Sensor
Located Right
Side of Front
Cover
Located Inside
Distributor
Solid
State
Magnetic
Pickup
YEL 632
YEL
632
RED 631
RED
631
LT BLU 634
BRN 633
S105
S104
Engine
Control
Module
(ECM)
M4077
9-29-02
CMP Sensor
Signal Depspower
CKP Sensor
Signal
DepsLo
Camshaft
Position
(CMP)
Sensor (8.1L)
Engine
Control
Module
(ECM)
M4076
9-29-02
Solid
State
17 18 16 32
J2
A
A
C
C
B
B
Crankshaft
Position
(CKP)
Sensor
Solid
State
PNK/
BLK 632
PNK/BLK
632
RED 631
RED
631
LT GRN 634
BRN/WHT 633
S105
S104
DTC 81 - Depspower Circuit Out of Range
Diagnostic Aids
If the condition is suspected to be intermittent, refer to
Intermittent Conditions.
Test Description
3. The Depspower circuit may be shorted to another ECM
circuit. The shorted circuit may not be apparent when
the ECM harness connector is disconnected.
Circuit Description
The Engine Control Module (ECM) uses a dedicated 12 volt
reference circuit for the Crankshaft Position (CKP) sensor
and the Camshaft Position (CMP) sensor. This circuit
supplies 12 volts to only the CKP and the CMP sensor
circuits. This circuit is referred to as Depspower. The ECM
monitors the voltage on the Depspower circuit. This DTC
sets if the voltage is out of range.
CMP Sensor
Signal Depspower
CKP Sensor
Signal
DepsLo
Camshaft
Position
(CMP)
Sensor (6.0L)
Engine
Control
Module
(ECM)
M4076a
2-13-04
Solid
State
17 18 16 32
J2
C
C
A
A
B
B
Crankshaft
Position
(CKP)
Sensor
(6.0L)
Solid
State
PNK/
BLK 632
PNK/BLK
632
RED 631
RED
631
LT GRN 634
BRN/WHT 633
S105
S104