Screen Display Details

DTC DTC name Detected item Preconditions when DTC is set

0611 Charge circuit abnormality (bank 1) ECU charge circuit 1 abnormality (internal burning, disconnections, etc.) Main relay power supply voltage is 16 V or higher.

0612 Charge circuit abnormality (bank 2) ECU charge circuit 2 abnormality (internal burning, disconnections, etc.) Main relay power supply voltage is 16 V or higher.

1093 No pump pressure send (2nd stage) Fuel leak (large) ・ Key switch input voltage is 16 V or higher. ・ DTC: 0090, 0092, 0192, 0193, 1093, 1291, 1292 and 1635 are not detected. ・ Engine coolant temperature is 60 ℃ or more. ・ 375 min-1 or more.

1095 Pressure limiter open Pressure limiter opened. ・ Key switch input voltage is 16 V or higher. ・ DTC: 0192, 0193, 1095, 1630 and 1635 are not detected. ・ At least 50 min-1 DTC setting conditions

ECU internal charge circuit bank 1 voltage is low.

ECU internal charge circuit bank 2 voltage is low.

Actual rail pressure higher than target rail pressure for 10 MPa or more holds 8 sec. or more when judgment of "No pump pressure feed (1st stage)"is completed. Or pressure feed indication is limit +1°CA or less, and actual rail pressure lower than target rail pressure for 10 MPa or more holds 8 sec. or more. ・ Pressure limiter opens. ・ Common rail pressure exceeds 200

MPa. Trouble judgment time Behavior during trouble

About 1.5 sec. High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 1 stop (No. 1, 2, 3 cylinder stop), EGR stop

About 1.5 sec.

High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 2 stop (No. 4, 5, 6 cylinder stop), EGR stop About 8 sec. High engine vibration, unstable idling speed, output reduction, revving problems, black smoke, engine stalling, and excess output are possible. Back-up: Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa)

About 1 sec. Output reduction, hunting Back-up: Injection quantity restriction 1

1112 Boost temperature sensor abnormality (abnormally low voltage) Sensor or harness disconnection, short, breakage ・ Key switch input voltage is 16 V or higher. ・ DTC: 1634 is not detected. Boost temperature sensor voltage is below 0.1 V. About 4 sec. No effect on operation Back-up: No back-up operation

1113 Boost temperature sensor abnormality (abnormally high voltage) Sensor or harness short

1173 Overheat Overheat status ・ Key switch input voltage is 16 V or higher. ・ DTC: 1634 is not detected. ・ Engine coolant temperature is 50 ℃ or higher. ・ At least 5 min. passed after start. ・ Key switch input voltage is 16 V or higher. ・ DTC: 0117, 0118, 1630, and 1633 are not detected. ・ Engine must be running. Boost temperature sensor voltage is above 4.95 V About 4 sec. No effect on operation Back-up: No back-up operation

Engine coolant temperature is higher than 110 ℃ . About 5 sec. No effect on operation Back-up: No back-up operation Recovery from failure Conceivable cause

*2 ECM terminal, ECM ground terminal problem (disconnection, high resistance) ECM internal problem

*2 ECM terminal, ECM ground terminal problem (disconnection, high resistance) ECM internal problem

*1 Fuel system clogged, line (hose) blocked Charge fuel pump problem (discharge problem) Wiring problem (short) between ECM and common rail pressure sensor Injector problem Supply pump problem Common rail pressure sensor problem (common rail) Pressure limiter problem (common rail)

*1 Fuel system line (hose), etc. blocked Air in fuel system (check hose connection) Pressure limiter problem Common rail pressure sensor problem Wiring problem (short) between ECM and common rail pressure sensor Supply pump problem ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and boost temperature sensor Boost temperature sensor problem ECM internal problem *2 Wiring problem (disconnection, short, high resistance) between ECM and boost temperature sensor Boost temperature sensor problem ECM internal problem

*2 Wiring problem (short) between ECM and ECT (engine coolant temperature) sensor Engine cooling system problem (radiator clog) Engine coolant level too low Engine coolant temperature sensor problem

DTC DTC name Detected item Preconditions when DTC is set DTC setting conditions

1261 Injector common 1 drive system abnormality

1262 Injector common 2 drive system abnormality

1291 PCV2 open circuit or ground short

1292 PCV2+B short circuit Injector common 1 side electrical wiring disconnection or short, EDU output section abnormality Injector common 2 side electrical wiring disconnection or short, EDU output section abnormality PCV2 electrical wiring open circuit, GND short ・ Main relay power supply voltage is 16 V or higher. ・ At least 70 min-1 ・ DTC: None of 0201, 0202, 0203, 0611, and 1261 is detected.

・ Main relay power supply voltage is 16 V or higher. ・ At least 70 min-1 ・ DTC: 0204, 0205, 0206, 0612, or 1262 not detected

・ Main relay power supply voltage is 16V or higher. ・ DTC : 1292 is not detected. ・ 300 min-1 or more, or actual rail pressure exceeds target rail pressure

PCV2 electrical wiring +B short ・ Key switch input voltage is 16 V or higher. ・ DTC: 1291 and 1292 are not detected. No injector 1, 2 and 3 monitor input signals

No injector 4, 5 and 6 monitor input signals

PCV2 monitor signal is fixed to Low-side.

PCV2 monitor signal is fixed to High-side.

1345 G sensor out of phase Camshaft gear/ crankshaft gear installation angle deviation and breakage ・ Key switch input voltage is 16 V or higher. ・ DTC: 0335, 0336, 0340, 0341, 1345 and 1635 are not detected. ・ G sensor signal is normal. ・ CKP (crank position) sensor signal is normal. No correct cam pulse in crank gap position

1625 Main relay system abnormality

1630 A/D conversion abnormality Harness disconnection/ GND short, relay stuck OFF ・ Key switch input voltage is 16 V or higher. ・ DTC: 1630 is not detected. ・ 3 sec. or more passed after key is switched ON. ・ Main relay drive command ON

Harness +B short, relay stuck ON DTC: 0606, 1625 are not detected. Main relay input power supply voltage is 1 V or lower.

Even when main relay coil OFF command is issued, relay does not cut off.

A/D conversion abnormality - A/D conversion is not possible. Trouble judgment time Behavior during trouble

About 2.5 sec.

About 2.5 sec.

High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 1 stop (No. 1, 2, 3 cylinder stop), EGR stop High engine vibration, unstable idling speed, output reduction, revving problems, and engine stalling are possible. Back-up: Common 2 stop (No.4, 5, 6 cylinder stop), EGR stop About 2 sec. Intensive engine vibration, output lowering, black smoke emitted Back-up: Limited injection amount 3 (multi-injection stopped)

About 2 sec. Intensive engine vibration, rough idling, output lowering, blow up fault, black smoke emitted Back-up: PCV2 stop.

When it occurs in at least 9 out of 10 samples

・ No change in behavior while engine is rotating ・ Restarting not possible after engine stalled Back-up: While engine rotating: CKP standard when CKP sensor is normal After engine stops: Cylinder identification not functioning (restarting not possible) About 2 sec. Engine cannot be started. Back-up: No back-up operation

About 5 sec. Machine power supply does not cut off. Back-up: No back-up operation

Immediate implementat ion Output reduction, black smoke produced Back-up: Analog sensor system default processing Injection quantity restriction 3 (multi-injection stop) Target common rail pressure upper limit (80 MPa) Recovery from failure Conceivable cause

*1 No 1, 2, 3 cylinder injector harness problem (disconnection, short) Injector problem ECM problem

*1 No 4, 5, 6 cylinder injector harness problem (disconnection, short) Injector problem ECM problem

*1 ECM problem Wiring problem (disconnection, short, high resistance) between ECM and G sensor ECM internal problem

*2 Wiring problem between ECM and PCV

*1 (Cranking becomes long, about 10 sec.) Wiring problem (disconnection, short, high resistance) between ECM and G sensor Camshaft gear installation problem Flywheel installation problem

*2 Wiring problem (disconnection, short, high resistance) between ECM and main relay Wiring problem (disconnection, short, high resistance) between fusible link and main relay Main relay problem *1 ECM internal problem

*2 ECM internal problem