Chrysler PT Cruiser. Manual — part 188
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Install a substitute relay in place of the Lift Pump Relay.
Turn the ignition on.
With the DRB, actuate the Lift Pump Relay.
Does the Lift Pump Motor cycle on and off?
All
Yes
→ Replace the Fuel Lift Pump Relay.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Lift Pump Motor harness connector.
Remove the Lift Pump Relay.
Turn the ignition on.
Measure the voltage on the Lift Pump Relay Output circuit.
Is the voltage above 1.0 volt?
All
Yes
→ Repair the Lift Pump Relay Output circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 6
6
Turn the ignition off.
Disconnect the Lift Pump Motor harness connector.
Remove the Lift Pump Relay.
Measure the resistance between ground and the Lift Pump Relay Output circuit.
Is the resistance above 100 kohms?
All
Yes
→ Go To 7
No
→ Repair the Lift Pump Relay Output circuit for a short to ground.
Inspect the fuse and replace as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
7
Turn the ignition off.
Disconnect the Lift Pump Motor harness connector.
Remove the Lift Pump Relay.
Connect a jumper wire across Lift Pump Relay connector cavities 30 and 87.
Using a 12-volt test light connected to ground, check the Lift Pump Relay Output
circuit in the Lift Pump Motor harness connector.
Is the test light illuminated brightly?
All
Yes
→ Go To 8
No
→ Repair the Lift Pump Relay Output circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
8
Turn the ignition off.
Disconnect the Lift Pump Motor harness connector.
Using a 12-volt test light connected to 12-volts, check the Lift Pump Ground circuit.
Is the test light illuminated brightly?
All
Yes
→ Go To 9
No
→ Repair the Lift Pump Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
232
DRIVEABILITY - DIESEL
*CHECKING THE FUEL/LIFT PUMP MOTOR OPERATION —
Continued
TEST
ACTION
APPLICABILITY
9
If there are no possible causes remaining, view repair.
All
Repair
Replace the Lift Pump Motor in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
233
DRIVEABILITY - DIESEL
*CHECKING THE FUEL/LIFT PUMP MOTOR OPERATION —
Continued
Symptom:
*CHECKING THE GLOW PLUG OPERATION
POSSIBLE CAUSES
GLOW PLUGS
FUSED B+ CIRCUIT OPEN
GLOW PLUG RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE
GLOW PLUG RELAY OUTPUT CIRCUIT SHORTED TO GROUND
GLOW PLUG RELAY OUTPUT CIRCUIT OPEN
GLOW PLUG RELAY
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the Glow Plug harness connectors for all cylinders.
Turn the ignition on.
With the DRB, actuate the Glow Plug Relay.
Using a 12-volt test light connected to ground, probe each Glow Plug harness
connector during actuator test.
Does the test light cycle on and off for each circuit during the actuator test?
All
Yes
→ Go To 2
No
→ Go To 3
2
Refer to the Service Information and perform the Glow Plug Test.
Are all Glow Plugs operating properly?
All
Yes
→ Test Complete.
No
→ Replace the Glow Plug(s) as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
3
NOTE: If the Glow Plug Relay fuselink is open, refer to the system schemat-
ics for all circuits that are powered by the Glow Plug Relay fuselink to
determine the cause of the blown fuselink.
Remove the Glow Plug Relay.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit in the Glow
Plug Relay connector, cavity 30 in the PDC.
Does the test light illuminate brightly?
All
Yes
→ Go To 4
No
→ Repair the Fused B+ (Fuselink) circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
4
Turn the ignition off.
Disconnect all the Glow Plug harness connectors.
Remove the Glow Plug Relay.
Turn the ignition on.
Measure the voltage on the Glow Plug Relay Output circuit.
Is the voltage above 1.0 volt?
All
Yes
→ Repair the Glow Plug Relay Output circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 5
234
DRIVEABILITY - DIESEL
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect all the Glow Plug harness connectors.
Remove the Glow Plug Relay.
Measure the resistance between ground and the Glow Plug Relay Output circuit.
Is the resistance above 1000 ohms?
All
Yes
→ Go To 6
No
→ Repair the Glow Plug Relay Output circuit for a short to ground.
Inspect the fuselink and replace as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
6
Turn the ignition off.
Disconnect all the Glow Plug harness connectors.
Remove the Glow Plug Relay.
Connect a jumper wire across Glow Plug Relay connector cavities 30 and 87.
Using a 12-volt test light connected to ground, check the Glow Plug Relay Output
circuit at each Glow Plug harness connector.
Is the test light on at each Glow Plug harness connector?
All
Yes
→ Go To 7
No
→ Repair the Glow Plug Relay Output circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
7
Refer to the Service Information and perform the Glow Plug Test.
Are all Glow Plugs operating properly?
All
Yes
→ Go To 8
No
→ Replace the Glow Plug(s) as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
8
If there are no possible causes remaining, view repair.
All
Repair
Replace the Glow Plug Relay.
Perform ROAD TEST VERIFICATION - VER-2.
235
DRIVEABILITY - DIESEL
*CHECKING THE GLOW PLUG OPERATION —
Continued
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст