Chrysler 300M 1999 Manual page 565

TEST 3B
REPAIRING INCORRECT AMBIENT TEMPERATURE READING
Perform TEST 3A Before Proceeding
START TEST 3B.
USING AN OHMMETER,
MEASURE THE...
USE AN OHMMETER IN
THE FOLLOWING
STEPS.
MEASURE BETWEEN THE
AMBIENT TEMP SENSOR
SIGNAL CIRCUIT AND
THE SENSOR GROUND
CIRCUIT. FIG. 1
*Perform Verification TEST VER-2A.
NOTE: FOR LOCATION
OF ALL COMPONENTS.
SEE GENERAL INFO 4.0
AMBIENT TEMPERATURE
SENSOR GROUND
CIRC UIT TO GROUND .
(CAV ITY 10)
FIG. 1
MEASURE BETWEEN
GROUND AND THE
AMBIENT TEMPERATURE
SENSOR SIGNAL
CIRCUIT. FIG. 1
**Check connectors - Clean / repair as necessary.
555
DISCONNECT THE
BODY CONTROL
MODULE C3 HARNESS
CONNECTOR.**
IS THE RESISTANCE YES
BELOW 500K
(500,000) OHMS?
NO
IS THE RESISTANCE YES
BELOW 50K (50,000)
OHMS?
NO
IS THE RESISTANCE YES
BELOW 50K (50,000)
OHMS?
NO
REPAIR THE SENSOR
GROUND CIRCUIT FOR
A PARTIAL SHORT TO
GROUND.*
REPAIR THE AMBIENT
TEMPERATURE SENSOR
SIGNAL CKT FOR A
PARTIAL SHORT TO
GROUND.*
REPAIR THE AMBIENT
TEMP SENSOR SIGNAL
CKT FOR A PARTIAL
SHORT TO THE SENSOR
GROUND CIRCUIT.*
REPLACE THE BODY
CONTROL MODULE.*
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