W T E C I I I E L E C T R O N I C C O N T R O L S T R O U B L E S H O O T I N G M A N U A L
0011 00-114
Table 5–1. RMR Device Resistance Checks
Resistance Check in
Resistance Module*
Voltage Signal **
Wiring to Control
Device
Description
Terminals
Resistance
± 5%
% Retarder
Application
Voltage
± 0.2 v
Device Terminal
Auto Full On
A to C
12K
100
3.6
No connections
Pressure Switch
Full On
High
A to C
32K
0
100
1.1
3.6
A
B
3-Step E-10R Bendix
Pedal
A to C
32K
0
32
58
100
1.1
1.9
2.8
3.6
A
B
C
D
6-Step Hand Lever —
Off
Position 1
Position 2
Position
3
Position 4
Position 5
Position
6
A to C
32K
0
14
28
45
65
82
100
1.1
1.5
1.9
2.3
2.8
3.2
3.6
+
1
2
3
4
5
6
Auto 1
2 On
A to C
12K
50
2.4
No connections
3 Pressure Switches —
Low
Medium
High
A to C
32K
0
32
68
100
1.1
1.9
2.8
3.6
A
B
A
B
A
B
Auto 1
3 On
2 Pressure Switches
Auto
Medium
High
A to C
21.4K
32
68
100
1.9
2.8
3.6
A
B
A
B
Dedicated Pedal
No Checks
Interface not
a resistance
module
0
100
0.7 – 1.2
3.4 – 3.5
A
B
C
*
Resistance module must be disconnected from the wiring harness and retarder control devices
** These voltages must be measured between terminals A and B.
CODE 64 XX — RETARDER MODULATION REQUEST DEVICE FAULT
