Test 16 - Pump Motor Not Running

NOTE: You must perform Test 1-A, before proceeding with this test.

Test 16A: Repairing Pump Motor Not Running (part 1 Of 2):

Test 16A: Repairing Pump Motor Not Running (Part 2 Of 2):

NAME OF CODE:
Pump Motor Not Running

When Monitored:
During 7 mph drive off test or at the end of an ABS stop.

Set Condition:
The Controller Antilock Brakes CAB monitors the pump relay output at cavity 34. It expects the voltage to decrease at a predetermined rate when the relay is turned off. If the pump monitor voltage decreases too quickly when the pump is turned off, the trouble code is set.

Possible Causes:
^ Loose connections in the pump relay output circuit between the splice and pump
^ Open pump relay output circuit from the splice to the pump/motor
^ Failed pump motor
^ Open pump motor ground circuit

Pump Motor:

ABS Pump/Motor Connector:

INACTIVE TROUBLE CODE CONDITION
You have just attempted to simulate the condition that initially set the trouble code message. The following additional checks may assist you in identifying a possible intermittent problem:

^ Visually inspect related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.
^ Visually inspect the related harnesses. Look for chafed, pierced, or partially broken wire.
^ Refer to any hotlines or technical service bulletins that may apply.


NOTE: When disconnecting or connecting connectors, always check for terminal damage, pushed out pins or miswired.

NOTE: After completion of steps, or completion of test, perform Verification Test VER-1A.Verification Test VER-1A - ABS