DIAGNOSTIC CODES
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 00-45
69 (cont’d)
33
ECU, Computer Operating Properly
(COP) timeout
No
Reset ECU, shutdown ECU on 2nd
occurrence (power loss; hydraulic
defaults). May cause “cateye” display or
all segments blank display, DNA(4)
34
ECU, write timeout
Yes
DNS, SOL OFF (hydraulic default), DNA
35
ECU, checksum test
No
Induce COP timeout (reset ECU), DNA(4)
36
ECU, RAM self test
No
Induce COP timeout (reset ECU), DNA(4)
39
Communication chip addressing error
No
Use defaults for J1939 data, DNA
41
ECU, I/O ASIC addressing test
No
Induce COP timeout (reset ECU), DNA(4)
42
SPI output failure
Yes
GPO 1–8 and reverse warning inoperable
43
SPI input failure
Yes
DNS, lock-in-range, DNA
70
12
Software, minor loop overrun
No
Induce COP timeout (reset ECU)
13
Illegal write to address
||content||
00
No
Induce COP timeout (reset ECU)
14
Software, major loop overrun
No
Induce COP timeout (reset ECU)
NOTES
(1)
This code is logged to real time to protect the transmission in case a loss of power to the ECU (Power Inter-
ruption, code 35 00) occurs.
(2)
The ECU hardware or software must be changed so that they are compatible.
(3)
Additional codes could be logged for other shifts where X indicates range shifted from and Y indicates range
shifted to.
(4)
The COP reset will clear the active inhibit.
(5)
The factory calibration must be rewritten to the ECU, or a different factory calibration is required to match
the software in the ECU.
Table 5–2. WT Series Diagnostic Codes (Continued)
Main
Code
Sub-
code
Description
CHECK
TRANS
Light
Inhibited Operation
Description
