DaimlerChrysler Jeep Grand Cherokee 2002, Руководство по обслуживанию

Страница: 191 / 284

TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the Swirl Solenoid harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Swirl Solenoid Control circuit.
Is the resistance below 10.0 ohms? All
Yes
→
Go To 5
No
→
Repair the Swirl Solenoid Control circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
5 Turn the ignition off.
Install a substitute Swirl Solenoid in place of the vehicle’s Swirl Solenoid.
NOTE: Ensure the ECM and Swirl Solenoid harness connectors are con-
nected.
Turn the ignition on.
With the DRBIII
t
, actuate the Swirl Solenoid.
With the DRB, check for this DTC to set again.
Did this DTC set again?
All
Yes
→
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Replace the Swirl Solenoid.
Perform ROAD TEST VERIFICATION - VER-2.
6 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 DTC When Monitored and Set Conditions. 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 ROAD TEST VERIFICATION - VER-2.
No
→
Test Complete.
183
DRIVEABILITY - DIESEL
P1270-INTAKE PORT SWIRL ACTUATOR OPEN CIRCUIT —
Continued
ProCarManuals.com