6–114
Copyright © 1998 General Motors Corp.
W T E C I I E L E C T RO N I C C O N T RO L S T RO U B L E S H O OT I N G M A N UA L
.
Table 6–8. RMR Device Resistance Checks
Resistance Check in
Resistance Module*
Voltage Signal **
Wiring to Control Device
Description
Terminals
Resistance
± 5%
% Retarder
Application
Voltage
± 0.2V
Device
Terminal
Wire
Color
Auto Full On
A to C
12 K
100
3.6
No connections
Pressure Switch
Full On
High
A to C
32 K
0
100
1.1
3.6
A
B
White
Blue
3-Step E-10R
Bendix Pedal
A to C
32 K
0
32
58
100
1.1
1.9
2.8
3.6
A
B
C
D
Blue
Violet
White
Orange
6-Step Hand
Lever —
Off
Position 1
Position 2
Position 3
Position 4
Position 5
Position 6
A to C
32 K
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
White
Blue
Orange
Violet
Green
Yellow
Red
Auto
1
/
2
On
A to C
12 K
50
2.4
No connections
3 Pressure
Switches
—
Low
Medium
High
A to C
32 K
0
32
68
100
1.1
1.9
2.8
3.6
A
B
A
B
A
B
White
Blue
White
Orange
White
Violet
Auto
1
/
3
On
2 Pressure
Switches
Auto
Medium
High
A to C
21.4 K
32
68
100
1.9
2.8
3.6
A
B
A
B
White
Orange
White
Violet
Dedicated Pedal
No Checks
Interface
not a
resistance
module
0
100
0.7 – 1.2
3.4 – 3.5
A
B
C
Green
Yellow
White
* 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
(Figures 6–38, 6–39)
