Workshop Manual

TRANSMISSION CONTROL SYSTEM (4L30–E)
7A1–73
DTC P0758 Shift Solenoid B 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 4 Go to Step 3
3 1. The engine “on”.
2. Apply brake pedal and select transmission range “D”.
3. Press and hold down the winter switch and select transmission
mode “winter”.
Does the scan tool display DTC P0758 at 3rd gear?
Go to Step 7
Go to Diagnostic
Aids
4 1. Turn the ignition “off”.
2. Disconnect the E-34 (BLUE) and E-35 (RED) PCM
connectors.
3. Turn the ignition “on”.
4. Using the J39200 DVOM, measure the voltage between PCM
connector terminals E35–31 and E35–1.
Is the voltage within 10 – 12 volts?
Go to Step 13 Go to Step 5
5 1. Turn the ignition “off”.
2. Using the J39200 DVOM, measure the resistance between
PCM connector terminals E35–31 and E35–43.
Is the resistance within 18 – 20 ohms?
Go to Step 14 Go to Step 6
6 1. Disconnect the transmission main case connector E–42.
2. Using the J39200 DVOM, measure the resistance between
terminals E42–6(A) and E42–2(D).
Is the resistance within 18 – 20 ohms?
Go to Step 15 Go to Step 16
7 1. Turn the ignition “off”.
2. Disconnect the E-34 (BLUE) and E-35 (RED) PCM
connectors.
3. Using the J39200 DVOM, measure the resistance between
PCM connector terminals E35–31 and E35–43.
Is the resistance within 18 – 20 ohms?
Go to Step 8 Go to Step 10
8 Using the J39200 DVOM, check a continuity between PCM
connector terminal E35–31 and ground.
Is there a continuity?
Go to Step 17 Go to Step 9
9 Using the J39200 DVOM, check a continuity between PCM
connector terminal E35–43 and ground.
Is there a continuity?
Go to Step 18 Go to Step 11
10 1. Disconnect the transmission main case connector E-42.
2. Using the J39200 DVOM, measure the resistance between
terminals E42–6(A) and E42–2(D).
Is the resistance within 18 – 20 ohms?
Go to Step 19 Go to Step 20