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Nissan Transmission Solenoid Guide

The document describes a technical issue where Nissan vehicles with electronic transmissions exhibit a 3rd gear start condition. The likely cause is a defective solenoid pack, which can be verified with resistance testing. Replacing the appropriate solenoid pack part number will resolve the issue.

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40 views2 pages

Nissan Transmission Solenoid Guide

The document describes a technical issue where Nissan vehicles with electronic transmissions exhibit a 3rd gear start condition. The likely cause is a defective solenoid pack, which can be verified with resistance testing. Replacing the appropriate solenoid pack part number will resolve the issue.

Uploaded by

angel ayala
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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BACK

BACK
Technical Service Information
ALL NISSAN ELECTRONIC UNITS
3RD GEAR STARTS
COMPLAINT: Before and/or after rebuild, any Nissan unit with electronic controls, exhibits a 3rd gear start
condition. Energizing the solenoids by using jumper wires, or using an external
transmission shift control box, enables the transmission to start in 1st gear and shift up
through the ranges normally. There may, or may not be, solenoid trouble codes stored in the
computers memory.

CAUSE: The cause may be, a defective solenoid pack that can be verified with a resistance check on
the solenoids with your DVOM, using the chart and illustrations in Figure 2.

CORRECTION: Replace the solenoid pack with the appropriate part number as listed below in the "Service
Information" section. The part numbers that are listed are Nissan, but will also fit the
Mazda units as well.

SERVICE INFORMATION:
Solenoid Pack (Rear Wheel Drive Models) ............................................... 31940-41X-09
Solenoid Pack (Front Wheel Drive Models) .............................................. 31940-27X-66

SHIFT SOLENOID APPLY CHART


GEAR SOLENOID "A" SOLENOID "B" OVERRUN
1ST ON ON ON/OFF
2ND OFF ON ON/OFF
3RD OFF OFF ON/OFF
4TH ON OFF ON
Overrun solenoid can be on or off depending on throttle opening,
however must be on in fourth gear. Note: when solenoid is "OFF",
overrun clutch is on. When solenoid is "ON" clutch is off.

Late model solenoid packs will not have seperate ground


wire for each solenoid,, but will retro-fit back on the
earlier units. They are grounded internally.

Figure 1
97-22
AUTOMATIC TRANSMISSION SERVICE GROUP Page 1 of 2
BACK
BACK
Technical Service Information

CHECKING NISSAN SOLENOIDS

SOLENOID RESISTANCE CHART


Solenoid Ohms Resistance
Shift "A" 20 - 40
Shift "B" 20 - 40
Overrun 20 - 40
(RE4RO1A Only)
Lock-up 10 - 16
EPC 2.5 - 5.0

RE4FO2A SOLENOID LOCATION


IS SHOWN BELOW

LOCK-UP EPC
SOLENOID SOLENOID
SHIFT
SHIFT SOLENOID "B"
SOLENOID "A"

Figure 2
97-22
AUTOMATIC TRANSMISSION SERVICE GROUP Page 2 of 2

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