Otc C0110 Pump Motor Circuit Malfunction - GMC chervolet camaro 1999 Service Manual

Brakes
Diagnostic Aids
• It is very important that a thorough inspection of
the wiring and connectors be performed. Failure
to carefully and fully inspect wiring and connectors
may result in misdiagnosis, causing part
replacement with reappearance of the malfunction.
• Thoroughly inspect any circuitry that may be
causing the complaint for the following conditions:
- Backed out terminals
Antilock Brake System 5-183
• The following conditions may cause an intermittent
malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation
• If an intermittent malfunction exists refer to
Troubleshooting Procedures Cell 4 in Electrical
Diagnosis for further diagnosis.
- Improper mating
Test Description
Step
1
2
3
4
5
6
- Broken locks
- Improperly formed or damaged terminals
The numbers below refer to step numbers on the
diagnostic table.
- Poor terminal-to-wiring connections 4. This step checks for a short to ground in CKT 302.
- Physical damage to the wiring harness 10. This step checks for an open in CKT 302.
OTC C011 O Pump Motor Circuit Malfunction
Action
Value(s)
Yes
No
Go to ABS
Was the Diagnostic System Check performed?
-
Go to Step 2
Diagnostic
System Check
Inspect the 40A ABS BATT 1 Maxifuse®, in the Underhood
Electrical Center 1.
-
Go to Step 7
Go to Step 3
Is the fuse OK?
1. Install a new 40A ABS BATT Maxifuse®.
2. Cycle the ignition switch from the OFF to RUN
position, engine OFF.
3. Using a scan tool in ABS!rCS Special Functions
-
Go to Step 16
Go to Step 4
attempt to run the AUTOMATED test.
4. R~check the 40A ABS BATT 1 Maxifuse® fuse.
Is the fuse OK?
1. Tum the Ignition switch to the OFF position.
2. Remove the 40A ABS BA TT 1 Maxifuse®.
3. Disconnect the EBCM/EBTCM connector C1.
4. Connect the J 39700 Universal Pinout Box using the
J
39700 - 530 cable adapter to the EBCM/EBTCM
OL (infinite)
Go to Step 5
Go to Step 12
harness connector only.
5. Using
J
39200 DMM, measure the resistance
between terminals 13 and 15 of J 39700.
Is the resistance within the range specified in the value(s)
column?
1. Disconnect the EBCM/EBTCM pump motor
connector C2.
2. Connect a 1 OA fused jumper wire between the pump
motor connector C2 terminal 1 and battery voltage.
3. Connect a jumper wire between the pump motor
-
Go to Step 11
Go to Step 6
connector C2 terminal 2 and ground. Only attempt to
run the pump motor for 5 seconds.
4. Disconnect the jumper wires.
5. Inspect the 10A fuse in the jumper wire.
Is the fuse OK?
Replace the BPMV. Refer to Brake Pressure Modulator
Valve Replacement. -
Go to Step 16
-
Is the replacement complete?