Chrysler PT Cruiser. Manual - part 236

TEST

ACTION

APPLICABILITY

Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Ensure the Crankshaft Position Sensor and the Camshaft Position Sensor are
properly installed and the mounting bolt(s) tight.
Refer to any TSB that may apply.
Were any of the above conditions present?

All

Yes

→ Repair as necessary

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 4

Turn the ignition off.
Remove the Camshaft Position Sensor.
Inspect the Tone Wheel/Pulse Ring for damage, foreign material, or excessive
movement.
Were any problems found?

All

Yes

→ Repair or replace the Tone Wheel/Pulse Ring as necessary.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 5

If there are no possible causes remaining, view repair.

All

Repair

Replace the Camshaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

Turn the ignition off.
With the DRBIII

t lab scope probe and the Miller special tool #6801, backprobe the

(K24) CKP Signal circuit in the CKP harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Start the engine.
Observe the lab scope screen.
Are there any irregular or missing signals?

All

Yes

→ Go To 7

→ Go To 11

All

Yes

→ Repair as necessary

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 8

DRIVEABILITY - 1.6L GAS

P0016-CRANK AND CAM OUT-OF-SYNC —

Continued

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Remove the Crankshaft Position Sensor.
Inspect the Tone Wheel/Flex Plate slots for damage, foreign material, or excessive
movement.
Were any problems found?

All

Yes

→ Repair or replace the Tone Wheel/Flex Plate as necessary.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 9

Turn the ignition off.
Remove the Camshaft Position Sensor.
Inspect the Tone Wheel/Pulse Ring for damage, foreign material, or excessive
movement.
Were any problems found?

All

Yes

→ Repair or replace the Tone Wheel/Pulse Ring as necessary.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 10

If there are no possible causes remaining, view repair.

All

Repair

Replace the Crankshaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

Turn the ignition off.
With the DRBIII

t lab scope probe and the Miller special tool #6801, backprobe the

(K24) CKP Signal circuit in the PCM harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Turn the ignition on. (do not start the engine)
Observe the lab scope screen.
Look for any pulses generated by the CKP Sensor.
Did the CKP Sensor generate any pulses?

All

Yes

→ Replace the Crankshaft Position Sensor.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 12

Turn the ignition off.
With the DRBIII

t lab scope probe and the Miller special tool #6801, backprobe the

(K44) CMP Signal circuit in the PCM harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Turn the ignition on. (do not start the engine)
Observe the lab scope screen.
Look for any pulses generated by the CMP Sensor.
Did the CMP Sensor generate any pulses?

All

Yes

→ Replace the Camshaft Position Sensor.

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 13

DRIVEABILITY - 1.6L GAS

P0016-CRANK AND CAM OUT-OF-SYNC —

Continued

TEST

ACTION

APPLICABILITY

Turn the ignition off.
With the DRBIII

t lab scope probe and the Miller special tool #6801, backprobe the

(K24) CKP Signal circuit in the PCM harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Start the engine.
Observe the lab scope screen while wiggling the wiring harness and connectors.
Were there any irregularities in the lab scope pattern?

All

Yes

→ Check the harness connectors carefully. If OK, replace the Crank-

shaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 14

Turn the ignition off.
With the DRBIII

t lab scope probe and the Miller special tool #6801, backprobe the

(K24) CMP Signal circuit in the PCM harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Start the engine.
Observe the lab scope screen while wiggling the wiring harness and connectors.
Were there any irregularities in the lab scope pattern?

All

Yes

→ Check the harness connectors carefully. If OK, replace the Cam-

shaft Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Go To 15

WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DRB Freeze Frame information. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?

All

Yes

→ Repair as necessary

Perform POWERTRAIN VERIFICATION TEST VER - 5 - 1.6L.

→ Test Complete.

DRIVEABILITY - 1.6L GAS

P0016-CRANK AND CAM OUT-OF-SYNC —

Continued

Symptom List:

P0030-1/1 O2 SENSOR HEATER CIRCUIT OPEN
P0036-1/2 O2 SENSOR HEATER CIRCUIT OPEN

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be P0030-1/1 O2 SENSOR HEATER
CIRCUIT OPEN.

When Monitored and Set Condition:

P0030-1/1 O2 SENSOR HEATER CIRCUIT OPEN

When Monitored:

With the engine running and O2 Sensor heater duty cycle >70%.

Set Condition:

When the PCM detects an open on the 1/1 O2 Sensor Heater Control

circuit for more than 320 ms.

P0036-1/2 O2 SENSOR HEATER CIRCUIT OPEN

When Monitored:

With the engine running and O2 Sensor heater duty cycle >70%.

Set Condition:

When the PCM detects an open on the 1/2 O2 Sensor Heater Control

circuit for more than 320 ms.

POSSIBLE CAUSES

O2 HEATER ELEMENT

O2 SENSOR HEATER CONTROL CIRCUIT OPEN

ASD RELAY OUTPUT CIRCUIT OPEN

INTERMITTENT CONDITION

PCM

TEST

ACTION

APPLICABILITY

Turn the ignition on.
With the DRBIII

t, read DTCs.

Does the Good Trip Indicator display NO?

All

Yes

→ Go To 3

→ Go To 2

NOTE: Allow the O2 Sensor voltage to stabilize between 0.4 and 0.6 volts
before continuing the test.
Turn the ignition on.
With the DRBIII

t, actuate the O2 Heater Relay.

With the DRBIII

t, monitor O2 Sensor voltage for at least 2 minutes.

Does the voltage stay between 0.4 and 0.6 volts?

All

Yes

→ Go To 3

→ Go To 7

DRIVEABILITY - 1.6L GAS

Content .. 234 235 236 237 ..