TM-9-2320-272-23-2

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-2 - Page 120 of 1417

ABS - CODE S2B 04 (RIGHT SIDE - YELLOW CHANNEL) - Continued

b.

Disconnect the right rear-rear wheel speed sensor.

c.

Set multimeter to measure resistance.

d.

Connect multimeter red lead to wheel speed sensor connector terminal. Refer to point to point

schematics.

e.

Connect multimeter black lead to wheel speed sensor connector other terminal.

f.

Meter reading should be between 980 and 2,350 ohms.

g.

If meter reading is correct, connect wheel speed sensor connector.

CONDITION/INDICATION

IS RIGHT REAR-REAR WHEEL SPEED SENSOR OPEN OR SHORTED?

DECISION

YES - Replace wheel speed sensor (Volume 3, WP

0468). Go to Step (4) to verify problem is solved.

NO - Go to Step (2).

TM 9-2320-272-23-2

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