Dodge D150 1990 Service Manual page 724

SENSOR TEST MODE
The sensor test mode allows t h e output o f seven
sensors a n d t h e state o f three switches t o be dis-
played on t h e D R B I I w h i l e t h e engine is not operat-
ing. This provides a means b y w h i c h t h e entire
circuit for each i n d i v i d u a l sensor and switch can be
checked, i n c l u d i n g t h e w i r i n g and Single Board E n -
gine Controller (SBEC) c i r c u i t r y .
OBTAINING SENSOR READ TEST MODE
Access "Read Sensor V o l t a g e " or "Read Sensor V a l -
ues"
SENSOR READ TEST MODE
READ SENSOR VOLTAGE
M A P Sensor Voltage
T h r o t t l e Position
M i n i m u m T h r o t t l e
Oxygen Sensor S i g n a l
Coolant Temp Sensor
T/Body Temp Sensor (5.2L and 5.9L Engines)
B a t t e r y Temp Sensor
READ SENSOR VALUES
M A P Sensor Reading
T h r o t t l e Opening
Oxygen Sensor State
Coolant Temperature
T/Body Temperature (5.2L and 5.9L Engines)
B a t t e r y Temperature
Vehicle Speed
ENGINE PARAMETERS MODE
Engine Speed
T o t a l Spark Advance
M A P Gauge Reading
Barometric Pressure
B a t t e r y Voltage
IGNITION TIMING PROCEDURE
Refer t o Group 8 D " I g n i t i o n System"
DIAGNOSTIC CONNECTOR SCHEMATIC
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D-1 GROUND
D-2
NIC
D-3 SCI TRANS
D-4 SCI RECEIVE
D-5
J-2 IGNITION
D-6 ASD RELAY
J9014-156