TEST ACTION APPLICABILITY
11 Turn the ignition off.
Disconnect the ABS Pump Motor connector.
Check connectors - Clean/repair as necessary.
Connect a 10 gauge 40 amp fused jumper wire between the ABS Pump Fused B(+)
terminal in theCAB harness connectorto theABS Pump Motor connector REDwired
terminal.
Connect a 10 gauge jumper wire between the ABS Pump Motor connector BLACK
wired terminal and ground.
Did the ABS Pump Motor operate?
All
Yes → Repair the ABS Pump Motor Fused B(+) circuit for an open.
Perform ABS VERIFICATION TEST - VER 1.
No → Repair the ABS Pump Motor Ground circuit for an open.
Perform ABS VERIFICATION TEST - VER 1.
28
BRAKES (CAB)
PUMP CIRCUIT FAILURE — Continued
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