Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 1121
3F–14
INTELLIGENT SUSPENSION
F-7
H-5
H-6
H-11
H-12
H-14
H-15
H-16
No.
Connector face
H-18
H-25
I-1
I-2
I-9
I-18
No.
Connector face
INTELLIGENT SUSPENSION
3F–15
Diagnostic Trouble Code (DTC)
Identification
DTC No.
DTC NAME
CODE
MEMORY
WARNING
LAMP
2
Actuator Coil Over Current
Yes
OFF
3
Actuator Coil/Position Sensor Open Circuit or Short
Yes
ON
4
G-Sensor Open Circuit or Short
Yes
ON
5
Vehicle Speed Sensor Open Circuit or Short
Yes
OFF
6
Stop Lamp Switch Open Circuit, Short or Contact Point Trouble
Yes
OFF
7
Engine Speed Signal Open Circuit or Short
Yes
OFF
9
Control Unit Abnormality
Yes
OFF
3F–16
INTELLIGENT SUSPENSION
DTC2 Actuator Coil Over Current
Circuit Description
The A, B, C, and D are the actuator motor coil terminals.
DC 12V driving voltage is applied between terminals A
and C and terminals B and D so that the shock absorber
oil valves are rotated at every 7.5
° step feed.
Diagnostic Aids
• Inspect the wiring for poor electrical connections
between the control unit 24 way connector and the
actuator connectors. Look for possible bent, backed
out, deformed, or damaged terminals. Check for
weak terminal tension as well.
Also check for a chafed wire that could short to bare
metal or other wiring. Inspect for a broken wire inside
the insulation.
• When diagnosing for a possible intermittent short or
open condition, move the wiring harness while
observing test equipment for a change.
DTC2 Actuator Coil Over Current
Step
Action
Value(s)
Yes
No
1
1. Turn off the starter switch.
2. Disconnect the actuator connectors C–45, C–44,
F–7, and F–6.
3. Measure the resistance between the actuator side
connector C–44 terminals 1 and 2.
Is the resistance within the specified value?
6.4– 7.2
W
Go to Step 2
Go to Step 3
2
1. Measure the resistance between the actuator side
connector C–44 terminals 3 and 4.
Is the resistance within the specified value?
6.4– 7.2
W
Go to Step 4
Go to Step 3
3
Replace the actuator FR.
—
Go to Step 4
—
4
1. Measure the resistance between the actuator side
connector C–45 terminals 1 and 2.
Is the resistance within the specified value?
6.4–7.2
W
Go to Step 5
Go to Step 6
5
1. Measure the resistance between the actuator side
connector C–45 terminals 3 and 4.
Is the resistance within the specified value?
6.4–7.2
W
Go to Step 7
Go to Step 6
6
Replace the actuator FL.
—
Go to Step 7
—
7
1. Measure the resistance between the shock
absorber side connector F–6 terminals 3 and 4.
Is the resistance within the specified value?
6.4–7.2
W
Go to Step 8
Go to Step 9
8
1. Measure the resistance between the shock
absorber side connector F–6 terminals 7 and 8.
Is the resistance within the specified value?
6.4–7.2
W
Go to Step 10
Go to Step 9
9
Replace the rear shock absorber RR.
—
Go to Step 10
—
10
1. Measure the resistance between the shock
absorber side connector F–7 terminals 3 and 4.
Is the resistance within the specified value?
6.4–7.2
W
Go to Step 11
Go to Step 12
11
1. Measure the resistance between the shock
absorber side connector F–7 terminals 7 and 8.
Is the resistance within the specified value?
6.4–7.2
W
Go to Step 13
Go to Step 12
INTELLIGENT SUSPENSION
3F–17
12
Replace the rear shock absorber RL.
—
Go to Step 16
—
13
If all steps are correct, check the continuity between
the control unit connector C–50 terminal 1 and
connector terminal C50–4, C50–17, C50–5, C50–18,
C50–6, C50–19, C50–7, C50–20, C50–8, C50–21,
C50–9, C50–22, C50–10, C50–23, C50–11, and C50–
24.
Is there continuity?
—
Go to Step 15
Go to Step 14
14
Repair the circuit.
—
Go to Step 16
—
15
Replace the control unit.
—
Go to Step 16
—
16
1. Reconnect all components, ensure all
components are properly mounted.
2. Clear the DTC.
Was this step finished?
—
Go to “Basic
Diagnosis
Flow". Go
to
Step 16
Step
Action
Value(s)
Yes
No
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