Chrysler New Yorker. Manual — part 670
TEST NTC-21A
CONTINUED - CHECKING OIL PRESSURE SENDING UNIT
FIG. 1
FIG. 2
N
O
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B
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E
C
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516
TEST NTC-21A
CONTINUED - CHECKING OIL PRESSURE SENDING UNIT
*Perform Verification TEST VER-2A.
**Check connectors - Clean / repair as necessary.
TEST NTC-21A
DISCONNECT THE
CONTINUED FROM INSTRUMENT
THE PREVIOUS CLUSTER.**
PAGE.
FIG. 1
WITH AN OHMMETER,
REPAIR THE OIL
MEASURE THE OIL
IS THE RESISTANCE
YES
PRESSURE SWITCH
PRESSURE SWITCH
BELOW 5.0 OHMS?
SENSE CIRCUIT FOR
SENSE CIRCUIT TO
A SHORT TO
GND. FIG.
2
GROUND.*
NO
REPAIR OR REPLACE
THE INSTRUMENT
CLUSTER AS
NECESSARY.*
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
517
TEST NTC-21B
CHECKING OIL PRESSURE SENDING UNIT
Perform TEST NTC-21A Before Proceeding
FIG. 1
FIG. 2
FIG. 3
FIG. 4
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
518
TEST NTC-21B
CHECKING OIL PRESSURE SENDING UNIT
Perform TEST NTC-21A Before Proceeding
*Perform Verification TEST VER-2A.
**Check connectors - Clean / repair as necessary.
DISCONNECT THE OIL
START TEST PRESSURE
SWITCH
NTC-21B. CONNECTOR NEXT
TO
THE OIL FILTER.**
FIG. 1
CONNECT A JUMPER
WIRE BETWEEN THE
DID THE OIL
YES
REPLACE THE OIL
OIL PRESSURE WARNING LAMP
PRESSURE
SWITCH.*
SWITCH SENSE CKT
ILLUMINATE?
AND TO GND. FIG. 2
NO
NOTE: KEEP THE
DISCONNECT THE
JUMPER WIRE
INSTRUMENT
CONNECTED DURING CLUSTER.**
THE NEXT STEP.
FIG. 3
WITH AN OHMMETER,
REPAIR THE OPEN OIL
MEASURE THE OIL
IS
THE RESISTANCE NO PRESSURE
SWITCH
PRESSURE SWITCH
BELOW 5.0 OHMS?
SENSE CKT BETWEEN
SENSE CIRCUIT TO
THE SWITCH AND THE
GND. FIG.
4
INSTRUMENT CLUSTER.*
YES
REPAIR OR REPLACE
THE INSTRUMENT
CLUSTER AS
NECESSARY.*
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
519
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