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[Datsun 1200 encyclopedia]

Reverse Lamp Switch

Revision as of 07:28, 1 May 2015; view current revision
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Categories: Transmission | Lighting System

The Reverse Lamp Switch is the little switch in the transmission that causes the reverse lamps on the back of the 1200 to light up when you put the gearshift lever in the R position. Reverse Switch is located on the shifter extension of tail housing very near the top of the housing.

Contents

Overview

Datsun 1200 used 56-Series Transmission exclusively. They came in 3-speed, 4-speed and 5-speed versions.

2-8943-1.jpg

4-speed switch Comparo (late vs early):

Green arrow points to reverse lamp switch

Top: 4th gear switch (some newer transmissions 8910-)
Bottom: reverse switch

Reverse lights switch
Top switch (emission controlled models)

Top switch is for emission control. Timing is modified differently in top gear. Not all 56 gearboxes have a Top Switch, but different years do. E.g:
* 1972-up USA
* 1989-up JDM Top switch is same part number as reverse switch.

1200 5-speed vs 4-speed Comparo
Pink arrow is reverse lamp switch

3-speed switch points straight back (Blue arrow)

Location

Location Comparo


Reverse Switch is near bottom of 4-speed 56-Series Transmission
14713.jpg
Reverse Switch is near the top of 5-speed 56-Series Transmission

Reverse Switch is near bottom of 60-Series Transmission
1676.jpg 23636.jpg

Reverse Switch is near bottom of 63-Series Transmission 5-speed
22338.jpg

Custom

When fitting a 5-speed into a 1200, there may not be enough room for the switch.

Solution 1: Plug the hole for the exising switch. Use Nissan 32108-18100 PLUG, or a custom made plug like this:
21070.jpg 21071.jpg 21072.jpg 21073.jpg 21074.jpg

Solution 2: Replace with a shifter switch:
21932.jpg photo 

Solution 3: modify the tunnel:
5008.jpg 5009.jpg

Solution 4: Using a hole saw, cut a hole right beside it in the tunnel so it has some room to fit and to move. then feed wires to it through there. Cover the hole with a flexible boot.

Part Numbers

22137.jpg

K12

32005-K121A Rev Lamp B110 $33.70 USD
Used by all Datsun 1200
Most 60-series 4-speeds B210/B310
FSW560L 60-series 'dogleg' 5-speed B310
Some FSW560A 60-series 5-speed B310
Also used in early 4TH-gear switch (USA B110)
Aftermarket
* BWD S9254 (w/spade terminals)
* ACDelco E2202
* ACDelco E2228D
* Master Pro 2-8943 (w/bullet terminals)
* Original Engine Management 8943
* Standard Motor Product/Intermotor LS325
* AirTex/Wells 1S5440

Back Up Lamp Switch

K10

32005-K102A Switch Rev Lamp $36.47 
Used by some FSW560A 60-series 5-speed B310

Alternate OEM Part Numbers: 
32005-K1001
32005-K1004
32005-K102A
32005-M0200
32005-M2105
88923307
JA442
32005-21000
32005-K1004
Aftermarket
* ACDelco E2204 
* KEMParts NS157 $7.56 USD
* Original Engine Management 8999 (w/spade terminals)
* AirTex/Wells 1S5792
fits various 56-series, 60-series, 63-series and 71-series
* A12A/A14/A15
* L16/L18/L20B
* L24/L24E/L26/L28E/L28ET/LD28 Diesel
* E15
* Z20/Z22/Z22
* SD22/SD25 Diesel

56-series

Backup Lamp Switch for A10/A12 powered vehicles.

32005-K121A Rev Lamp B110 $33.70 USD FS4W56L
supeceded 32005-H5000 COMP-SWITCH REVERSE LAMP  
replaced 32005-21101 COMP-SWITCH REVERSE LAMP
replaced 32005-21100 COMP-SWITCH REVERSE LAMP
Also used in early 4TH-gear switch (USA B110)
* BWD S9254 (w/spade terminals)
* ACDelco E2202
* ACDelco E2228D
* Master Pro 2-8943 (w/bullet terminals)
B120 Datsun 1200 Pickup
32005-21000 SWITCH COMP.-reverse lamp 3 speed
32005-21100 SWITCH COMP.-reverse lamp 4 speed
32005-21101 SWITCH COMP.-reverse lamp 4 speed
32010-G1651 -8910 B120 FSW56A
replaced 32005-21101 SWITCH ASSY-REVERSE LAMP
B10 Datsun 1000
32005-21100 ASS'Y-SWITCH, reverse lamp 4 speed
32005-21000 ASS'Y-SWITCH, reverse lamp 3 speed
replaced (not interchangeable) 25310-89900 ASS'Y-SWITCH, reverse lamp 3-speed
32108-18100 PLUG-reverse lamp switch (up to '68-Sept.)
32005-K121A Switch Rev Lamp $33.70 USD
superceded 32005-K1202 SWITCH COMP-REVERSE LAMP 4-SPEED(A12) B310
superceded 32005-K1201
superceded 32005-H5000

60-Series

4-speed

32005-K121A Switch Rev Lamp $33.70 USD
superceded 32005-K1202 SWITCH COMP-REVERSE LAMP 4-SPEED(A14,A15) B310
superceded 32005-K1201
superceded 32005-H5000

5-speed

32005-K121A Switch Rev Lamp $33.70 USD
superceeded 32005-K1202 SWITCH COMP-REVERSE LAMP B310 -0779 [FS5W60L 'dogleg']
superceeded (interchangeable) 32005-K1201
superceeded (interchangeable) 32005-H5000 
32005-K1000 SWITCH COMP-REVERSE LAMP B310 -0779 [FS5W60L 'dogleg'] 
32005-K121A Switch Rev Lamp $33.70 USD
superceeded 32005-H5000 SWITCH COMP-REVERSE LAMP B310 0879- [FS5W60A] 
replaced (not interchangable) 32005-K1000
32005-K102A Switch Rev Lamp $36.47 
superceded 32005-K1002 SWITCH COMP-REVERSE LAMP B310 0879- [FS5W60A] 
superceded (interchangeable) 32005-K1001
superceded (interchangeable) 32005-K1000
バック ランプ スイッチ

63-series

For B210 5-speed, which debuted April 1976 (1976-1/2 model year)

32005-K102A Switch Rev Lamp $36.47 
superceded 32005-K1000 COMP-SWITCH,REVERSE LAMP 5-SPEED(COUPE) B210 0476-

Automatic

In automatic powered 1200s, the backup lamp switch is in the Shifter, not in the transmission.

Wiring

Reverse Lamp is powered off the 10A IGN Fuse. It is grounded at the back combination tail lamp bolt.

photo

Swap Notes

The location of the Reverse Switch can differ between all the different transmission. It is generally a problem when fitting any 60-series or 63-series gearbox in to the small 1200 manual tunnel. The reverse-light switch is right where the Datsun 1200 chassis x-member mount is.

To use a shifter mounted switch, see this discussion

For other options, see 60-Series Transmission#Reverse Switch