Jeep WG Grand Cherokee 2002, Руководство по обслуживанию

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TEST ACTION APPLICABILITY
3 Turn the ignition on.
With the DRBIII
t
, read Brake Fluid Level Switch voltage.
What is the Voltage reading of the Brake Fluid Level Switch?
All
Approximately 2 volts.
Go To 4
Above 4 volts.
Go To 5
Approximately 0 volts.
Go To 8
4 Turn the ignition off.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
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 wiring harness/connectors as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Test Complete.
5 Turn the ignition off.
Disconnect the Brake Fluid Level Switch connector.
Note: Check connector - Clean/repair as necessary.
Disconnect the CAB harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the Fluid Level Sense circuit.
Does the test light illuminate? All
Yes
→
Repair the Brake Fluid Level Switch Sense circuit for a short to
voltage.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To 6
6 Turn the ignition off.
Disconnect the Brake Fluid Level Switch connector.
Check connector - Clean/repair as necessary.
Disconnect the CAB connector.
Check connector - Clean/repair as necessary.
Measure the resistance of the Brake Fluid Level Switch Sense and Ground circuits.
Is the resistance below 5 ohms for both circuits? All
Yes
→
Go To 7
No
→
Repair the Brake Fluid Level Switch Sense or Ground circuit for
an open.
Perform ABS VERIFICATION TEST - VER 1.
7 If there are no possible causes remaining, view repair. All
Repair
Replace the CAB.
Perform ABS VERIFICATION TEST - VER 1.
23
BRAKES (CAB)
BRAKE FLUID LEVEL SWITCH —
Continued
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