Jeep WG Grand Cherokee 2002, Руководство по обслуживанию

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TEST ACTION APPLICABILITY
11 Turn the ignition off.
Disconnect CAB Connector.
Note: Check connector - Clean/repair as necessary.
Measure the resistance of the CAB ground circuits.
Is the resistance below 1.0 ohm? All
Yes
→
Go To 12
No
→
Repair the ground circuit for an open. Make sure the Pump Motor
connector is secure. The CAB must sense all four wheels at 25
km/h (15 mph) before it will extinguish the ABS Indicator.
Perform ABS VERIFICATION TEST - VER 1.
12 Make sure the Pump Motor connector is secure.
Turn the ignition on.
With the DRBIII
t
, enable pump motor actuation.
NOTE: Pump motor will not operate, but voltage will be applied.
Measure the voltage drop across the ABS ground circuit connection, with pump motor
actuation enabled.
Is the voltage below 0.1 volt?
All
Yes
→
Go To 13
No
→
Repair the Ground circuit for an open. The CAB must sense all
four wheels at 25 km/h (15 mph) before it will extinguish the ABS
Indicator.
Perform ABS VERIFICATION TEST - VER 1.
13 If there are no possible causes remaining, view repair. All
Repair
Replace the Controller Anti-Lock Brake in accordance with the
Service Information.
Perform ABS VERIFICATION TEST - VER 1.
14 Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Make sure the Pump Motor connecter is secure.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Refer to any Hotline letters or Technical Service Bulletins that may apply.
Were any problems found? All
Yes
→
Repair as necessary. The CAB must sense all four wheels at 25
km/h (15 mph) before it will extinguish the ABS Indicator.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Test Complete.
46
BRAKES (CAB)
PUMP MOTOR CIRCUIT NOT WORKING PROPERLY —
Continued
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