Dtc P3031: Temperature Threshold Overshoot Failures During After-Sales Regeneration; Fault Finding-Customer Complaints - Suzuki GRAND VITARA 2005 Service Manual

DTC P3031: Temperature Threshold Overshoot Failures During After-sales Regeneration

CAUTION
!
• The fault is present because the exhaust gas temperature sensor 2 detects over 700 °C, 1292 °F
while the diesel particulate filter after-sales regeneration was in progress.
Carry out an after sales regeneration referring to "Diesel Particulate Filter After-sales Regeneration
Procedure: in Section 1C".
If the fault is still present, substitute a known-good ECM and recheck.
• The parameters must be reinitialised after any procedure is carried out on the diesel particulate
filter.
Use command "Initialize Diesel PF data" on SUZUKI scan tool, and diesel particulate filter after-
sales regeneration referring to "Diesel Particulate Filter After-sales Regeneration Procedure: in
Section 1C" or "Diesel Particulate Filter Removal and Installation: in Section 1K".
NOTE
If the fault is present, the diesel particulate filter after-sales regeneration in progress fails.

Fault Finding-Customer Complaints

NOTE
Before carrying out the procedures associated with customer complaints, check for the absence of
faults and the conformity (or otherwise) of the parameters and statuses, using SUZUKI scan tool. If the
customer complaint is not eliminated, then proceed according to the corresponding fault finding chart.
Table 1: No dialogue with the ECM
Table 2: The Engine Does Not Start
Table 3: The Engine Starts with Difficulty
Table 4: Injection Noise
Table 5: Poor Performance with Smoke
Table 6: Poor Performance without Smoke
Table 7: Irregular Engine Operation
Table 8: Fuel System Leaks
Table 9: Rough idle
Table 10: Oil leaks from the turbocharger
Engine General Information and Diagnosis: 1A-95
S5JB0B1104152
S5JB0B1104153