Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 630
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–40
Step
Action
Yes
No
1
1. Start the engine.
2. Select TOD mode.
Is there the memory except DTC 24(P1733)?
Go to Step 4
Go to Step 2
2
1. Turn off the starter switch.
2. Disconnect the ECU connector (B–48) and (B–49).
Is there the continuity between the connector (B–48) terminal 23
and 25?
Repair the circuit.
Go to Step 7
Go to Step 3
3
1. Disconnect the transfer connector (M–27).
Is there the continuity between the connector (B–48) terminal 23
and the connector (M–27) terminal 5, the connector (B–49)
terminal 12 and connector (M–27) terminal 1, and the connector
(B–49) terminal 13 and connector (M–27) terminal 9?
Replace the rear
speed sensor.
Go to Step 7
Repair the circuit.
Go to Step 7
4
Is the memory DTC 14(P1731)?
Go to Step 5
Refer to other
trouble cheek
flow.
5
Is there the continuity between harnesses of terminal 32 and 45
(vehicle side terminal of the front and rear speed sensor)?
Go to Step 6
Repair the circuit
Go to Step 7
6
Is there the continuity between harnesses of terminal 12 and 13
(vehicle side terminal of the speed sensor COM(–) and ref)?
Replace front and
rear speed
sensor.
Go to Step 7
Repair the circuit.
Go to Step 7
7
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is the step complete?
Verify the repair
Return to Step 7
4B2–41
DRIVE LINE CONTROL SYSTEM (TOD)
Check flow
Trouble code
Phenomenon
Standard
6
13 (P1735)
The reference is short-circuited to
GND.
Reference
]
5 V
15 (P1736)
The reference Vb is short-circuited.
If the reference wire (15) is short-circuited to GND, the
speed signal is not generated. If the wire is short-circuited
to the battery voltage, the signal level becomes faulty.
D04RY00004
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–42
Step
Action
Yes
No
1
1. Start the engine.
Does the voltage between terminals 12 and 13 meet the standard
5V?
The phenomenon
is not
respoduced.
Refer to
“Troubles
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
(B–49)12 and (B–48)24?
Go to Step 4
The ECU is
failed. Replace
the ECU.
Go to Step 8
4
1. Disconnect the H-17 connector.
Is the continuity established between floor harness connector
terminals (H-17)1 and (H-17)8?
Go to Step 5
Short to GND
between (B–49)
12 and (H–17) 1.
Repair the sircuit.
Go to Step 8
5
1. Disconnect the M-27 connector.
Is the continuity established between transfer harness connector
terminals (M–27)2 and (M–27)7?
Replace the front
speed sensor.
Go to Step 8
The reference
harness for the
front speed
sensor is
short–circuited to
GND. Repair the
circuit.
Go to Step 6
6
1. Disconnect the M-27 connector.
Is the continuity established between transfer harness connector
terminals (M–27)1 and (M–27)7?
Replace the rear
speed sensor.
Go to Step 8
The reference
harness for the
front 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 (B–49)12 and (B–48)24?
Repair the
harness 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
4B2–43
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.
D04RY00004
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