Workshop Manual

TRANSMISSION CONTROL SYSTEM (4L30–E)
7A1–65
B When diagnosing for a possible intermittent short or
open condition, move the wiring harness while
observing test equipment for a change.
B An open ignition feed circuit can cause multiple DTCs
to set.
B A shift solenoid B DTC P0758 could also set with a
shift solenoid A electrical failure.
Test Description
The numbers below refer to the step numbers on the
diagnostic chart:
3. This test checks for power to the shift solenoid A
from the ignition through the PCM.
5. This test measures the resistance of the component.
8. This test checks the function of the shift solenoid A
and the transmission internal wiring harness.
Shift Solenoid Status Chart
Gear
Shift solenoid A Shift solenoid B
1st OFF ON
2nd ON ON
3rd ON OFF
4th OFF OFF
DTC P0753 Shift Solenoid A Electrical
Step Action Yes No
1 Were you sent here from the “Powertrain On–Board Diagnostic
(OBD) System Check”?
Go to Step 2
Go to OBD
System Check
Refer to
Driveability and
Emission in
Engine section
2 1. Install the scan tool.
2. With the engine “on”, turn the ignition switch “on”.
NOTE: Before clearing DTC(s), use the scan tool to record “Freeze
Frame” and “Failure Records” for reference, as data will be lost
when the “Clear Info” function is used.
3. Record the DTC “Freeze Frame” and “Failure Records”.
Were DTCs P0753, P0758, P1860 set?
Go to Step 3
Go to Diagnostic
Aids
3 1. Turn the ignition “on”.
2. Using the J39200 DVOM, measure the voltage between PCM
connector terminals E35–43 and E34–1 (GND).
Is the voltage within 10–12 volts?
Go to Step 4 Go to Step 5
4 1. Turn the ignition “off”.
2. Disconnect the E-34 (BLUE) and E-35 (RED) PCM connector.
3. Turn the ignition “on”.
4. Using the J39200 DVOM, measure the voltage between PCM
connector terminals E34–5 and ground.
Is the voltage within 10 – 12 volts? Go to Step 10 Go to Step 5
5 1. Turn the ignition “off”.
2. Disconnect the E-34 (BLUE) and E-35 (RED) PCM connector.
3. Using the J39200 DVOM, measure the resistance between
PCM connector terminals E35–43 and E34–5.
Is the resistance within 18 – 20 ohms?
Go to Step 6 Go to Step 8
6 1. Disconnect the E-34 (BLUE) and E-35 (RED) PCM
connectors.
2. Using the J39200 DVOM, check a continuity between PCM
terminals E34–5 and ground.
Is there a continuity?
Go to Step 11 Go to Step 7
7 Using the J39200 DVOM, check a continuity between E-35 (RED)
PCM terminal 43 and ground.
Is there a continuity?
Go to Step 12 Go to Step 9