Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 107
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–46
Step
Action
Yes
No
1
1. Start the engine.
Does the voltage between terminals 12 and 47 meet the standard
5V?
Refer to
“Trouble
intermittently
observed”.
Go to
Step 2
2
Is the voltage below the standard?
Go to
Step 3
Go to
Step 7
3
1. Turn off the starter switch.
2. Disconnect the ECU connector.
Is the continuity established between vehicle harness terminals
(C–38)12 and (C–37)25?
Go to
Step 4
The ECU is
failed. Replace
the ECU.
Go to
Step 8
4
1. Disconnect the H-7 connector.
Is the continuity established between floor harness connector
terminals (H-7)2 and (H-7)15?
Go to
Step 5
Short to GND
between
(C–38)12 and
(H–7)2.
Repair the circuit.
Go to
Step 8
5
1. Disconnect the A-1 connector.
Is the continuity established between transfer harness connector
male terminals (A–1)1 and (A–1)7?
Replace the rear
speed sensor.
Go to
Step 8
The reference
harness for the
rear speed
sensor is
short–circuited to
GND. Repair the
circuit.
Go to
Step 6
6
1. Disconnect the A-1 connector.
Is the continuity established between transfer harness connector
terminals (A–1)2 and (A–1)7?
Replace the front
speed sensor.
Go to
Step 8
The reference
harness for the
rear speed
sensor is
short–circuited to
GND. Repair the
circuit.
Go to
Step 8
7
1. Turn off the starter switch.
2. Disconnect the ECU connector.
3. Turn on the starter switch.
Is the battery voltage observed between harness connector
terminals (C–38)12 and (C–37)25?
Repair the circuit.
Go to
Step 8
The ECU has
failed. Replace
the ECU.
Go to
Step 8
8
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”
Go to
Step 8
4B2–47
DRIVE LINE CONTROL SYSTEM (TOD)
Check flow
Trouble code
Phenomenon
Standard
7
21 (P1716)
The voltage of the throttle position
sensor (TPS) is faulty.
See below table.
NOTE: The signal voltage from the TPS deviates from
the standard range.
D04R200025
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–48
D04RY00012
4B2–49
DRIVE LINE CONTROL SYSTEM (TOD)
Step
Action
Yes
No
1
1. Turn off the starter switch.
Is the battery voltage normal?
Go to
Step 2
Charge or
replace the
battery.
Go to
Step 7
2
1. Turn on the starter switch.
Does the voltage between terminals 15 and 47 fall within the
standard range?
Go to
Step 3
Go to
Step 4
3
1. Clear the trouble code.
2. Turn on the starter switch.
Is there DTC21 (P1716)?
Go to
Step 4
Refer to
“Trouble
intermittently
observed”.
4
1. Turn off the starter switch.
2. Disconnect the ECU connector.
3. Turn on the starter switch.
Does the voltage between terminals (C–38)15 and (C–37)25 fall
within the standard range above?
The ECU has
failed. Replace
the ECU.
Go to
Step 7
Go to
Step 5
5
Is the harness healthy?
Go to
Step 6
Repair the
harness.
Go to
Step 7
6
Is the TPS healthy?
Go to
Step 7
Replace the TPS.
Go to
Step 7
7
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Go to
Step 7
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