0386488 JOHNSON EXHAUST HOUSING ASSY

Table 1
QUICK REFERENCE CHART WITH DESCRIPTION OF GENERAL PARAMETER IDENTIFIERS    
PID     Description    
$00 $0D
a     Remote Fault Reset
Used to reset faults on the CCM.    
$00 $80
aabbcc     Device ID Code
Used to read the device ID code from the CCM as well as from other components on the data link. Each pair of bytes (aa, bb, cc) is sent LSB first.    
$00 $82
ab     CCM Error Codes
Used to read the CCM error codes.    
$AA $12
a     CCM Communication Rate Change Enable
Used to determine if the CCM is connected to the host computer directly or remotely using a modem. Also used to enable or disable the host computers ability to change the communication rate of the RS-232C serial port.    
$AA $87
aaaaaaaa     Access Level 1 Password
Used to read or program the Level 1 Password    
$AA $88
aaaaaaaa     Access Level 2 Password
Used to read or program the Level 2 Password    
$AA $89
aaaaaaaa     Access Level 3 Password
Used to read or program the Level 3 Password    
$AA $8A
aaaaaaaa     Login Password
Password used to login when host device is connecting to the CCM    
$F0 $12
aa     Security Access Level
Used to read or program the password level.    
$F6 $01
aabb     CCM RS-232C Serial Port Configuration
Used to program the RS-232C port configuration on the CCM    
$F8 $14
aaaaa aaaaa     Application Software Part Number
Used to read and write the application software part number for the CCM.    Remote Fault Reset$00 $0D aUsed to reset faults on the CCM.
Table 2
(a)     $00 - $7F = Retain current CCM inactive fault status.
$80 - $FF = Reset CCM inactive fault.    Device ID Code$00 $80 aabbccUsed to read the device ID code from the CCM as well as other components on the data link. Each pair of bytes (aa, bb, cc) is sent LSB first.
Table 3
(aa)     Module ID: will always equal $61, data will be sent as $61 $00    
(bb)     Service Tool Support Change Level: $01, data will be sent as $01 $00    
(cc)     Application type:$FF $E0, data will be sent as $E0 $FF    CCM Error Codes$00 $82 abUsed to read the CCM Error Codes.
Table 4
(a)     bit 1 = Reserved    
(b) (1)     Fault Code Status    
bit 8     1 = RS-232C link message fault exists    
bit 7     1 = Miscellaneous Cat Data Link fault    
bit 6     1 = Invalid Cat Data message fault    
bit 5     1 = Internal buffer overflow on RS-232C or Data Data Link fault    
bit 4     1 = RS-232C short circuit fault    
bit 3     1 = Memory battery is weak    
bit 2     1 = M5X message error (checksum or byte count error)    
bit 1     1 = EEPROM fault    
( 1 ) A value of 0 (zero) in bits 1 through 8 indicates that particular fault does not exist.CCM Communication Rate Change Enable$AA $12 aUsed to determine if the CCM is connected to the host computer directly or remotely using a modem. Also used to enable or disable the host computers ability to change the communication rate of the RS-232C serial port.
Table 5
(a)     Bit 4     Reserved for Caterpillar.    
Bit 3 0 = Enable password protection
1 = Disable password protection    
Bit 2 0 = Enable baud rate change
1 = Disable baud rate change    
Bit 1 0 = Direct connection
1 = Modem connection    Access Level 1 Password$AA $87 aaaaaaaaUsed to read or program the Level 1 Password
Table 6
(aaaaaaaa)     Level 1 password in printable ASCII form. Must be at least 6, but no more than 8 characters long. Do not pad with spaces if the password is less than 8 characters long. Use only letters and numbers for the password characters.    Access Level 2 Password$AA $88 aaaaaaaaUsed to read or program the Level 2 Password.
Table 7
(aaaaaaaa)     Level 2 password in printable ASCII form. Must be at least 6, but no more than 8 characters long. Do not pad with spaces if the password is less than 8 characters long. Use only letters and numbers for the password characters    Access Level 3 Password$AA $89 aaaaaaaaUsed to read or program the Level 3 Password.
Table 8
(aaaaaaaa)     Level 3 password in printable ASCII form. Must be at least 6, but no more than 8 characters long. Do not pad with spaces if the password is less than 8 characters long. Use only letters and numbers for the password characters    Login Password$AA $8A aaaaaaaaPassword used to login when host device is connecting to the CCM.
Table 9
(aaaaaaaa)     Login password in printable ASCII form. Must be at least 6, but no more than 8 characters long. Do not pad with spaces if the password is less than 8 characters long. Use only letters and numbers for