DaimlerChrysler Jeep Grand Cherokee 2002 Service Manual page 73

P0243-TURBOCHARGER WASTEGATE SOLENOID CIRCUIT OPEN CIR -
CUIT —
Continued
TEST
3 Turn the ignition off.
Disconnect the Turbocharger Wastegate Solenoid harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the Turbocharger Wastegate Solenoid
Control circuit.
Is the resistance above 100 kohms?
Yes → Go To 4
→ Repair the Turbocharger Wastegate Solenoid Control circuit for a
No
4 Turn the ignition off.
Disconnect the Turbocharger Wastegate Solenoid harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Turbocharger Wastegate Solenoid Control circuit.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the Turbocharger Wastegate Solenoid Control circuit for
No
5 Turn the ignition off.
Install a substitute Turbocharger Wastegate Solenoid in place of the vehicle's
Turbocharger Wastegate Solenoid.
NOTE: Ensure the ECM and Turbocharger Wastegate Solenoid harness
connectors are connected.
Turn the ignition on.
With the DRB, check for this DTC to set again.
Did this DTC set again?
Yes → Go To 6
→ Replace the Turbocharger Wastegate Solenoid.
No
6 If there are no possible causes remaining, view repair.
Repair
ACTION
short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
an open.
Perform ROAD TEST VERIFICATION - VER-2.
Perform ROAD TEST VERIFICATION - VER-2.
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
DRIVEABILITY - DIESEL
65
APPLICABILITY
All
All
All
All