DaimlerChrysler Jeep Grand Cherokee 2002, Руководство по обслуживанию

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TEST ACTION APPLICABILITY
1 NOTE: If DTC P0560-SYSTEM VOLTAGE TOO HIGH is present with this
DTC, perform diagnostics for P0560 first.
Turn the ignition on.
With the DRBIII
t
, erase the ECM DTCs.
Test drive the vehicle.
With the DRBIII
t
, read the ECM DTCs.
Does the DRBIII
t
display this DTC?
All
Yes
→
Go To 2
No
→
Go To 9
2 Turn the ignition off.
Remove and inspect Fuse 26 from the PDC.
Is the fuse OK? All
Yes
→
Go To 3
No
→
Repair the short that caused the fuse to open and replace the fuse.
Perform ROAD TEST VERIFICATION - VER-2.
3 Turn the ignition off.
Disconnect the ECM harness connectors.
Using a 12-volt test light connected to 12-volts, check both of the ECM ground
circuits in ECM harness connector C1 cavities 1 and 2.
Did the test light illuminate for both cavities? All
Yes
→
Go To 4
No
→
Repair the ECM Ground circuit(s) for an open.
Perform ROAD TEST VERIFICATION - VER-2.
4 Turn the ignition off.
Disconnect the ECM harness connectors.
Remove the ASD Relay from the PDC.
Connect a jumper wire between cavity 30 and cavity 87 of the ASD Relay connector.
Turn the ignition on.
Measure the voltage of the Battery (-) Sense circuit in ECM harness connector cavity
C1-20.
Is the voltage below 1.0 volt? All
Yes
→
Go To 5
No
→
Repair the Battery(-) Sense circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
5 Turn the ignition off.
Disconnect the ECM harness connectors.
Remove Fuse 26 from the PDC.
NOTE: A short to ground on any circuit associated with Fuse 6 or 26 may
cause this DTC to set.
Measure the resistance between ground and the B) Sense circuit in ECM
harness connector C1-19.
Is the resistance above 100 kohms? All
Yes
→
Go To 6
No
→
Repair the B) Sense circuit for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
190
DRIVEABILITY - DIESEL
P1511-BATTERY SENSE LINE 1 VOLTAGE TOO HIGH —
Continued
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