Abs Pinpoint Test 1: No Communication With The Anti-Lock Brake System (Abs) Module

NO COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) MODULE ABS PINPOINT TEST 1

PINPOINT TEST 1		NO COMMUNICATION WITH THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
STEP	INSPECTION		ACTION
1	CHECK CIRCUITS R, Y/LG AND R FOR POWER Key OFF positon. Disconnect: Anti-Lock Brake Control Module 0413-102. Key in ON position. Measure the voltage between the ABS control module 0413-102 pin 11, circuit R, harness side and ground. Measure the voltage between the ABS control module 0413-102 pin 20, circuit R, harness side and ground. Measure the voltage between the ABS control module 0413-102 pin 28, circuit Y/LG, harness side and ground. Are voltages greater than 10 volts?	Yes	Go to next step.
		No	Repair the circuit in question. Test the system for normal operation.
2	CHECK CIRCUIT B FOR AN OPEN Key in OFF position. Measure the resistance between the ABS control module 0413-102 pin 1, circuit B, harness side and ground; and between the ABS control module 0413-102 pin 18, circuit B, harness side and ground. Are the resistances less than 5 ohms?	Yes	CHECK the module communications network. See COMMUNICATIONS NETWORK DIAGNOSIS .
		No	REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test with the brake pedal not applied.

ABS MODULE PIN - CIRCUIT SPECIFICATION

ABS Module Pin	Circuit
20	R
11	R
28	Y/LG