Jeep KJ Liberty 2005, Руководство по обслуживанию

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Symptom:
PCI BUS LOOPBACK
When Monitored and Set Condition:
PCI BUS LOOPBACK
When Monitored: Ignition On - Continuously
Set Condition: When the ABM detects PCI Bus messages have been missing for 5 seconds
and has failed the self test.
POSSIBLE CAUSES
INTERMITTENT DTC
DAMAGED ABM/ABM HARNESS CONNECTOR
FUSED RUN RELAY OUTPUT CIRCUIT OPEN
ABS VALVE FUSED B(+) CIRCUIT OPEN
ABM - GROUND CIRCUIT OPEN
ABM - INTERNAL FAULT
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIII
t
, read DTCs.
With the DRBIII
t
, erase DTCs.
Turn the ignition off.
Turn the ignition on.
With the DRBIII
t
, read DTCs.
Does the DRBIII
t
display PCI BUS LOOPBACK?
All
Yes
→
Go To 2
No
→
Go To 6
2 Turn the ignition off.
Disconnect the ABM harness connector.
Inspect the ABM/ABM harness connector for damage.
Is there any broken, bent, pushed out, corroded or spread terminals? All
Yes
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To 3
3 Turn the ignition off.
Disconnect the ABM harness connector.
Turn the ignition on.
Measure the voltage of the Fused Run Relay Output circuit.
Is the voltage above 10 volts? All
Yes
→
Go To 4
No
→
Repair the Fused Run Relay Output circuit for an open.
Perform ABS VERIFICATION TEST - VER 1.
31
BRAKES (25E)