Chrysler New Yorker. Manual — part 642
TEST TC-157A
CONTINUED - REPAIRING - INTERMITTENT LOSS OF CMP OR CKP
FIG. 1
FIG. 2
FIG. 3
FIG. 4
FIG. 5
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TEST TC-157A
CONTINUED - REPAIRING - INTERMITTENT LOSS OF CMP OR CKP
*Perform Verification TEST VER-2A.
**Check connectors - Clean / repair as necessary.
TEST TC-157A
AT THIS TIME THE
CONTINUED FROM
CONDITIONS TO SET
THE PREVIOUS THE CODE
ARE NOT
PAGE.
PRESENT.
FIG. 1
WITH THE DRB, GO
TO THE FREEZE
RECORD THE FREEZE
FRAME SCREEN.
FRAME DATA.
FIG. 3
CHANGE THE DRB TO
WITH THE INFORMATION
WHILE MONITORING THE
LAB SCOPE. SET
FROM FREEZE FRAME,
CKP AND THE CMP
BOTH CHANNEL ONE
OPERATE THE VEHICLE
SIGNAL CIRCUITS WITH
AND CHANNEL TWO TO IN
THOSE CONDITIONS.
THE DRB LAB SCOPE.
LAB SCOPE. FIG.
2
ARE THERE ANY
CONDITIONS TO SET
USE THE RECORDING
IRREGULARITIES IN
NO
THE FAULT ARE
FUNCTION OF THE
THE RECORDED LAB
STILL NOT PRESENT,
LAB SCOPE. SCOPE PATTERNS?
ERASE CODE, TEST
FIG. 4 AND 5
COMPLETE.*
YES
THE IRREGULAR
REMOVE THE
PATTERN INDICATES
CONNECTOR FROM
A PROBLEM WITH
THAT SENSOR AND
THAT SIGNAL.
INSPECT CAREFULLY.
INSPECT ALL
INTERMEDIATE ARE THERE ANY
YES
REPAIR
AS
CONNECTORS AND THE
PROBLEMS IN THESE
NECESSARY.*
WIRING HARNESS.
AREAS?
NO
REPLACE THE
SENSOR.*
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TEST TC-181A
REPAIRING - 2/1 O2S VOLTAGE SHORTED TO GROUND
Perform TEST DTC Before Proceeding
2/1 LEFT BANK UP
FIG. 1
2/1 LEFT BANK UP
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TEST TC-181A
REPAIRING - 2/1 O2S VOLTAGE SHORTED TO GROUND
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A.
**Check connectors - Clean / repair as necessary.
NOTE:
START TEST
REFER TO FIGURE 1
TC-181A. FOR POSSIBLE
TROUBLE CODE
CAUSES.
WITH THE DRB IN
IS THE
THE CONDITION
SENSORS, MONITOR
SUSPECT O2
SENSOR NO REQUIRED
TO
SET
START ENGINE.
THE
VOLTAGE BELOW
THIS TROUBLE CODE
SUSPECT O2 SENSOR
0.16 VOLTS?
IS NOT PRESENT AT
VOLTAGE. THIS
TIME.*
YES
KEY OFF.
WITH THE DRB IN
IS THE
DISCONNECT THE
SENSORS, MONITOR
SUSPECT O2 SENSOR
NO
REPLACE THE
SUSPECT O2 SENSOR
THE
VOLTAGE BELOW
SUSPECT O2
HARNESS CONNECTOR.**
SUSPECT O2 SENSOR
0.16 VOLTS?
SENSOR.*
SEE GENERAL INFO 4.4
VOLTAGE.
YES
KEY OFF. DISCONNECT
THE POWERTRAIN
CONTROL MODULE
HARNESS CONNECTOR.**
SEE GENERAL INFO 4.1
USING AN OHMMETER,
SIGNAL CIRCUIT AND
REPAIR THE
MEASURE THE
THE SENSOR
IS THE RESISTANCE
YES
SUSPECT O2 SENSOR
RESISTANCE BETWEEN
SIGNAL/O2S RETURN
BELOW 5.0 OHMS?
SIGNAL CIRCUIT FOR A
THE SUSPECT O2 CIRCUIT.
SHORT TO
SIGNAL/O2S
SENSOR...
RETURN.*
NO
USING AN OHMMETER,
REPAIR THE
MEASURE THE
SENSOR SIGNAL
IS THE RESISTANCE
YES
SUSPECT O2 SENSOR
RESISTANCE BETWEEN
CIRCUIT AND ENGINE
BELOW 5.0 OHMS?
SIGNAL CIRCUIT FOR
THE SUSPECT O2...
GROUND.
A SHORT TO ENGINE
GROUND.*
NO
REPLACE THE
POWERTRAIN CONTROL
MODULE.*
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