Allison B 400 - Page 49

Copyright © 1998 General Motors Corp. 6–13
DIAGNOSTIC CODES
WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
57 11 Range verification C3PS test, 1st Yes DNS, SOL OFF (3rd), DNA
22 Range verification C3PS test, 2nd Yes DNS, 3rd, DNA
44 Range verification C3PS test, 4th Yes DNS, 5th or SOL OFF (3rd), DNA
66 Range verification C3PS test, 6th Yes DNS, SOL OFF (5th), DNA
88 Range verification C3PS test, N1 Yes DNS, N3, DNA
99
Range verification C3PS test, N2
or N4
Yes DNS, N3, DNA
61 00 Retarder oil temperature, hot No None
62 12
Retarder oil temperature sensor,
failed low
No None
23
Retarder oil temperature sensor,
failed high
No None
63 00 Input function fault No Depends on input function, DNA
26 Kickdown input failed on No Kickdown operation inhibited
40 Service brake status input failed on No
No auto neutral to drive shifts for
refuse packer. (I/O package #41)
41
Pump/pack and a neutral general
purpose input
No
No auto Neutral to drive shifts for
refuse packer. (I/O package #41)
64 12
Retarder modulation request
sensor, failed low
No Retarder operation inhibited
23
Retarder modulation request
sensor, failed high
No Retarder operation inhibited
65 00 Engine rating too high Yes DNS, Lock-in-neutral
66 00
Serial communications interface
fault
No Use default throttle values, DNA
69 12 ECU, A solenoid driver open Yes
DNS, SOL OFF
(Hydraulic default), DNA
13 ECU, B solenoid driver open Yes
DNS, SOL OFF
(Hydraulic default), DNA
14 ECU, C solenoid driver open Yes
DNS, SOL OFF
(Hydraulic default), DNA
15 ECU, D solenoid driver open Yes
DNS, SOL OFF
(Hydraulic default), DNA
16 ECU, E solenoid driver open Yes
DNS, SOL OFF
(Hydraulic default), DNA
21 ECU, F solenoid driver open No Lockup inhibited, DNA
Table 6–2. WT Series Diagnostic Codes (cont’d)
Main
Code
Subcode Description
DO NOT
SHIFT
Light
Inhibited Operation
Description