Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1746
DIAGNOSIS 7A2-35
•
Poor connection of each connector.
Reference:
When the vehicle speed 20km/h at L range in 1st gear, following signal is outputted.
Measurement terminal: B13 (C95) and B5 (C95)
-AC range by circuit tester: Approximately 6.2 V
Vehicle Speed Sensor Reference Wave Form
Measurement Terminal: B13 (+)
B5 (-)
Measurement Scale: 5V/div
2ms/div
Measurement Condition: Vehicle speed 20km/h at L range in 1st gear
7A2-36 DIAGNOSIS
DTC P0727 (Flash Code 13) Engine Revolution Sensor No Signal
RED
TDC
Sensor
TCM
A7
C94
(7)
BLK/RED
WHT
C56
(27)
E9
(1)
(2)
(3)
C57
(98)
(90)
(101)
ECM
C56 (ECM-A)
Setting Condition:
•
The engine speed becomes 0 rpm for 2 seconds while the vehicle is running at the over 40 km/h.
Fail Safe:
•
Lock-up is inhibited.
Possible Cause:
•
Crank position sensor malfunction.
•
Sensor wheel (flywheel) malfunction.
•
Large sensing gap between speed sensor and sensor wheel (flywheel).
•
Faulty input signal from crank position sensor to ECM.
•
Signal wire open circuit or short circuit to battery between ECM A24 and TCM terminal A7 (C94).
•
Poor connection of each connector.
Reference:
When the engine speed 1500rpm, following signal is outputted.
Measurement terminal: A7 (C94) and B5 (C95)
DIAGNOSIS 7A2-37
Engine Speed Sensor Reference Wave Form
Measurement Terminal: A7 (+)
B5(-)
Measurement Scale: 5V/div
20ms/div
Measurement Condition: At engine speed 1500rpm
7A2-38 DIAGNOSIS
DTC P0717 (Flash Code 14) Turbine Speed Sensor No Signal
Turbine
Sensor
TCM
B3
H23
(9)
C95
(3)
E31
(2)
(1)
(3)
E10
Key SW
BRN/RED
WHT
BLK
BRN/RED
Speed Sensor
Turbine Sensor
Setting Condition:
•
The turbine speed below 300 rpm for 2 seconds while the vehicle is running at the speed over 40 km/h with the
engine speed over 1500 rpm in the D, 3, 2, or L range.
Fail Safe:
•
When the vehicle is running, the gear position selected at the trouble detection is held and the lock-up is
inhibited.
•
After the vehicle stopped, all solenoid operations stop (OFF) and the gear is fixed to the 3rd.
Possible Cause:
•
Turbine speed sensor malfunction.
•
Sensor wheel (reverse & high clutch drum) malfunction.
•
Large sensing gap between speed sensor and sensor wheel (reverse & high clutch drum).
•
Sensor wire open circuit, short circuit to battery or short circuit to ground between turbine speed sensor terminal
1 and TCM terminal B3 (C95).
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