Dtc P0204: Fuel Injector No.4 Circuit - Suzuki Grand Vitara 2011 Manual

DTC P0204: Fuel Injector No.4 Circuit

CAUTION
!
• Cylinder number is counted from flywheel side.
• This fault can result in a rapid and significant fouling of the diesel particulate filter.
• This fault may appear if the wiring harness has been damaged.
Follow the procedure described in "Electrical Circuit Inspection Procedure in Section 00".
• This test enables the condition and the conformity of the engine wiring harness to be checked.
NOTE
• Conditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine has been started.
• If CC1, CC, or D1 is present, the Red stop warning light (gravity 2 warning light) is lit.
• If CO is present the Injection warning light (gravity 1 warning light) is lit.
• If CO is still present, the Malfunction indicator light (MIL) will come on after three consecutive
driving cycles (starting +5 seconds + turn OFF ignition switch and wait 40 seconds.).
• If the fault is present, the injection on cylinder 4 is disabled.
• Use service wire for all operations on the ECM connectors.
Wiring Diagram
For wiring circuit and connector number, refer to "A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A".
Detecting Condition
Displaying on SUZUKI scan tool
CC1
CO
CC
D1
Troubleshooting
Check the connections on fuel injector No.4.
Check the ECM connections.
Repair if necessary.
Disconnect fuel injector No.4.
Measure the resistance of fuel injector No.4 between "C07-1" and "C07-2" terminals.
Replace the fuel injector if there is a short circuit (R = 0 Ω) or an open circuit (resistance = infinity).
Otherwise reconnect fuel injector No.1.
Check the following connections for continuity and make sure there is no interference resistance:
• Between "C07-2" wire of fuel injector No.4 connector and "C85-28" terminal of ECM connector
• Between "C07-1" wire of fuel injector No.4 connector and "C85-31" terminal of ECM connector
If the fault is still present: apply Test 8 of Fault Finding-Tests referring to "Test 8: Injector malfunction: For Diesel
Engine Model".
If the fault is still present, substitute a known-good ECM and recheck.
Engine General Information and Diagnosis: For Diesel Engine Model 1A-306
Short circuit to +12 V
Open circuit
Short circuit
Fuel injector control
Detecting condition
S6JB0A1124100