1. Double relay
2. ECM
3. Injection pump solenoid valve
(3rd piston deactivator)
4. Fuel pump
5. “ENG” fuse (15 A)
6. “FUEL PUMP” fuse (15 A)
C51-80
RED / GRN
ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM) 6-59
DTC P1135 3RD PISTON DEACTIVATOR (INJECTION PUMP SOLENOID VALVE) CIRCUIT
MALFUNCTION
WIRING DIAGRAM
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze flame data by using scan tool.
3) Run engine at idle speed.
4) Check DTC and pending DTC by using scan tool.
TROUBLESHOOTING
STEP ACTION YES NO
1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.
FLOW TABLE”.
2 Is operating sound heard from fuel pump? Go to Step 3. Proceed to DTC
P0230 Diag. Flow
table.
3 Check Wire Harness
1) Disconnect injection pump solenoid valve
connector with ignition switch turned OFF.
2) With ignition switch ON, check voltage between
“BLU/WHT” wire terminal of solenoid valve
connector and ground.
D Within 5 sec. after ignition switch ON: 10 – 14 V
D Over 5 sec. after ignition switch ON: about 0 V
Is check result as specified?
Go to Step 4. “BLU/WHT” wire open
or short to ground.
4 Check Injector Pump Solenoid Valve
Check resistance between “BLU/WHT” and
“RED/GRN” terminal of valve.
Is it between 25 – 30 Ω?
D “RED/GRN” wire
open or shorted to
power/ground.
D Poor C51-80
connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck.
Faulty injection pump
solenoid valve.
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