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C15 and C18 – Codes that Inhibit Operation of Aftertreatment System

Diagnostic Trouble Codes that Affect the Aftertreatment System and the Conditions for Clearing the Code

 

The following tables list the codes that inhibit the aftertreatment system either during the current key cycle or through successive key cycles.

Table 1
Codes That Clear With Each Key Cycle
J1939 Code CDL Code Customer Action Clearing Conditions
102-18 E1045 (2) Cycle key OFF for 30s and then run engine per Clearing Conditions Engine Speed >1400/1500 RPM (MR/HD)
108-13 274-13 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
108-3 274-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
108-4 274-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
168-2 168-2 Cycle key OFF for 30s then START engine Run engine > 3 Seconds
168-3 168-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
172-3 2526-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
172-4 2526-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3241-3 3485-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3241-4 3485-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3242-3 2452-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3242-4 2452-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3242-15 E1008 (1) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3242-16 E1008 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3242-18 E1014 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3479-5 2461-5 Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3479-6 2461-6 Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3480-3 2460-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3480-4 2460-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3487-5 2489-5 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3487-6 2489-6 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3487-7 2489-7 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3487-8 2489-8 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3563-3 1785-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3563-4 1785-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3609-13 3464-13 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3837-13 3493-13 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
4077-3 2497-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
4077-4 2497-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
5423-5 3427-5 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
5423-6 3427-6 Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
5591-6 3471-6 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
5591-14 3472-14 Code Will Remain Active Until the Correct Software Has Been Installed Flash File Update
Table 2
Codes That Stay Active Through Key Cycles
J1939 Codes CDL Codes Customer Action Clearing Conditions
108-21 274-21 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3473-31 E1025 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3474-14 E1026 (1) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3474-31 E1026 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3480-16 E1050 (2) Service is required, contact local Caterpillar ® dealership Troubleshooting procedure and Caterpillar® Electronic Technician (Cat ET) Service Test Required
3480-18 E1052 (2) Service is required, contact local Caterpillar ® dealership Troubleshooting procedure and Caterpillar® Electronic Technician (Cat ET) Service Test Required
3488-3 2490-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3488-4 2490-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3511-3 3482-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3511-4 3482-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3609-18 E1154 (2) Cycle key OFF for 30s then START engine and IDLE engine for 30 seconds Run engine > 30 Seconds
3609-21 3464-21 Cycle key OFF for 30s then START engine and IDLE engine for 30 seconds Run engine > 30 Seconds
3609-3 3464-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3609-4 3464-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3703-31 E993 (2) Inhibit Switch is Preventing Regeneration Allow Regeneration
3711-31 E593 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3714-31 E992 (3) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
3715-31 E991 (3) Service is required, contact local Caterpillar ® dealership Troubleshooting procedure and Caterpillar® Electronic Technician (Cat ET) Service Test Required
3837-21 3493-21 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3837-3 3493-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
3837-4 3493-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
4077-16 E1051 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
4077-18 E1053 (2) Cycle key OFF for 30s then START engine and perform a Forced Regeneration Successful Forced Regeneration
5591-3 3472-3 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
5591-4 3472-4 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
5591-5 3471-5 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
5591-9 3472-9 Cycle key OFF for 30s then turn key ON Circuit Check (Auto)
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