Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 122
6E–92
4JH1 ENGINE DRIVEABILITY AND EMISSIONS
43
P1335
A
ON
Engine Speed Output Circuit Malfunc-
tion
The PSG (pump control unit) is
recognized defective engine speed
signal form the ECM.
Fuel injection quantity is
reduced.
Correct engine speed signal.
1. CKP sensor harness open circuit,
short to ground or short to voltage.
2. CKP sensor output harness open
circuit, short to ground or short to volt-
age.
3. Poor connector connection.
4. CKP sensor malfunction.
5. Pulse sensing gap incorrect.
6. Pulser malfunction.
7. Electrical interference.
8. Magnetic interference.
9. ECM malfunction.
10. PSG (pump control unit) malfunc-
tion.
90/91/98/
101
P0335(B)/
P0335(D)
45
P1345
A
ON
Camshaft Speed Malfunction
The PSG (pump control unit) is
recognized incorrect camshaft
speed signal.
No fail-safe function.
Correct camshaft speed.
1. Pump camshaft speed sensor mal-
function.
2. Pulse sensing gap incorrect.
3. Pulser malfunction.
4. Electrical interference.
5. Magnetic interference.
5. ECM malfunction.
6. PSG (pump control unit) malfunc-
tion.
-
-
47
P1520
A
ON
Neutral Switch ON Error
Neutral switch signal is inputted
“On” three times consecutively
under driving conditions.
No fail-safe function.
Correct neutral switch signal is inputted
two times consecutively under driving
conditions.
1. Neutral switch circuit short to volt-
age circuit.
2. Neutral switch malfunction.
3. ECM malfunction.
87
-
B
ON
Neutral Switch OFF Error
Neutral switch signal is inputted
“Off” three times consecutively
under driving conditions.
1. Neutral switch circuit open, short to
ground circuit.
2. Poor connector connection.
3. Neutral switch malfunction.
4. ECM malfunction.
87
-
55
P1605
C
ON
Seed and Key File Destroyed
Seed or key file in EEPROM is
destroyed.
No fail-safe function.
No recovery.
ECM malfunction.
-
-
D
ON
EEPROM Defect
Write and read from the EEPROM
are failed during initialization of the
ECM.
ECM uses default values from
the EPROM.
Write and read from the EEPROM are
correct during initialization of the ECM.
ECM malfunction.
-
-
E
ON
EEPROM Defect
EEPROM checksum does not
match with the read check sum
during initialization of the ECM.
EEPROM checksum match with the
read check sum during initialization of
the ECM.
ECM malfunction.
-
-
56
P1610
A
-
Security Key and Security Code not
Programmed
Immobiliser functions are not pro-
grammed in the ECM.
1. Engine does not start.
2. Check engine lamp flash.
No recovery.
ECM malfunction.
-
B****
56
P1611
A
-
Wrong Security Code Entered
Received security code is not cor-
rect.
1. Engine does not start.
2. Check engine lamp flash.
No recovery.
1. ECM malfunction.
2. Immobiliser control unit malfunc-
tion.
3. Transponder key malfunction.
-
B****
Flash
Code
Code
Symptom
Code
MIL
DTC Name
DTC Setting Condition
Fail-Safe (Back Up)
Recovery Condition
Related Failure Parts
Related
ECM Pin
No.
Related
Multiple
DTC