Dtc P0202: Fuel Injector Circuit / Open Malfunction-Cylinder 2 - Suzuki GRAND VITARA 2005 Service Manual

Troubleshooting
Check the connections on fuel injector No.1.
Check the ECM connections.
Repair if necessary.
Disconnect fuel injector No.1.
Measure the resistance of fuel injector No.1 between "C04-1" and "C04-2" 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 "C04-2" wire of fuel injector No.1 connector and "C85-27" terminal of ECM connector
• Between "C04-1" wire of fuel injector No.1 connector and "C85-32" terminal of ECM connector
If the fault is still present: apply Test 8 of Fault Finding-Tests referring to "Test 8: Injector malfunction: ".
If the fault is still present, substitute a known-good ECM and recheck.

DTC P0202: Fuel Injector Circuit / Open Malfunction-Cylinder 2

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 in related
manual".
• 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 CC.1, CC, or 1.DEF 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 2 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
CC.1
CO
CC
1.DEF
Engine General Information and Diagnosis:
Detecting condition
Short circuit to +12 V
Open circuit
Short circuit
Fuel injector control
1A-39
S5JB0B1104098