Isuzu 1999 RODEO Workshop Manual page 980

f A15 EVAP Canister Vent Solenoid
f B16 EVAP Canister Parge Solenoid
f A1 2 Low Fuel
f C10 Tacho Meter
f C11 Fuel Gauge
f C13 Fan Low
f C12 Fan High
Test Description
Number(s) below refer to the step number(s) on the
Diagnostic Chart.
DTC P1640 –Output Driver Module (ODM) "A" Fault
Step
1 Was the "On-Board Diagnostic (OBD) System Check"
performed?
2 Check the fuse for the driver circuit that was shown as
faulty.
Was the fuse blown?
3 1. Check for a short to ground between the fuse and
the affected component.
2. Replace the fuse after making any necessary
repairs.
Is the action complete?
4 1. Disconnect the PCM connector for the affected
driver circuit.
Is there any damage to the PCM pin or connector?
5 Repair the damaged pin or terminal.
Is the action complete?
6 Was the Lamp of circuit for "Check Engine"?
7 1. Leave the PCM connector for the lamp driver circuit
disconnected.
2. Ignition "ON."
3. Using a DVM, check the voltage at the PCM
connector for the affected lamp driver circuit.
Was the voltage equal to the specified value?
8 1. Ignition "ON."
2. Check for battery voltage at the fuse for the affected
lamp circuit.
Was battery voltage available at the fuse?
9 Repair the open circuit between the ignition switch and
the fuse.
Is the action complete?
10 1. Ignition "OFF."
2. Disconnect the PCM connector for the affected
driver terminal.
3. Connect an ohmmeter between a good ground and
the PCM connector for the affected driver.
Did the ohmmeter indicate continuity?
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Action
2. The Tech 2 Driver Module Status indicates the PCM
pin that is affected.
9. The Tech 2 may indicate "short circuit" even when
the problem is an open circuit. The cause of an
open circuit may be in the component itself.
11. A short to ground on the ignition side of the
component will blow the fuse. Since the fuse was
checked in Step 2, a short to ground would be
between the affected component and the PCM.
Value(s)
— Go to Step 2
— Go to Step 3
— Verify repair
— Go to Step 5
— Verify repair
— Go to Step 7
B+ Go to Step 15
— Go to Step 10
— Verify repair
— Go to Step 11
6E1–353
Yes No
Go to OBD
System
Check
Go to Step 4
—
Go to Step 6
—
Go to Step 13
Go to Step 8
Go to Step 9
—
Go to Step 12