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Nissan calls the dash assembly the "Instrument Panel". Both square-gauge type (Standard) and round-gauge type (Deluxe) are removed in the same way.
Also see Wiring
Also see: Dash Changes for info on swapping Round-gauge cluster into a Standard-trim 1200.
Dashboard Assembly Removal and Replacement
You will need to remove the dash assembly to remove the dash pad, troubleshoot wiring, or to replace/lubricate the wiper linkage. Having the dash out makes changing the radio easier, but you can alternatively do that by only removing the glove box to gain access. It also much easier to install a tachometer after removing the dash, but again that could be done by reaching up under the dash.
It would be a good idea to label each wire you remove with masking tape. Write on the tape what the wire is for so that when you put the dash back in you'll know which wire goes where. This is especially important for all the green wires (flashers and brake-pedal wires). If you get stuck, see the Wiring article but beware the wire colors vary for differents years.
It's easiest to remove the entire dash (with gauges, radio, etc) after separating the wiring harness from the firewall. I've done it by removing wires from dash/gauges etc. and leaving the harness in the car, but it's much easier to separate the harness first from the car, then remove the whole thing.
Dash assembly (LHD)
You don't need to remove the steering column plastic cover or the steering wheel, though that might make it a bit easier.
Here are BASIC OVERVIEW steps:
- Disconnect battery
<li>Disconnect interior wiring harness connectors from dash harness
<li>Disconnect radio speakers and antenna cables
<li>Remove package tray if equipped
<li>Disconnect speedometer cable from back of dash
<li>Disconnect heater control
<li>Unbolt dash assembly
<li>Pull unit back and then out through passenger door
</ul>
Here are DETAILED STEPS:
-
<li>Disconnect battery. There's live power in the dash assembly, so this is important
<li>Reach up under dash and unscrew the speedometer cable from the housing
<li>unbolt glove box: Open glove box door, then remove two tiny bottom screws, and two larger top screws. Leave the the latch bolted in. Pull the box out from behind
<li>remove the round clip holding the glove-box door swing arm. Then remove the little plastic rectangle. Then set the door in a safe place, it scratches easily
<li>Remove the two 12mm-head bolts holding the steering column to the dash assembly. The column will hang free just a bit, enough to get the dash out
<li>remove the heater-defroster tubes (they simply pull free)
<li>remove the ashtray
<li>On driver's side a-pillar, unplug the door switch wire, and if equipped, speaker wires
<li>unplug the ignition switch connector, and if equipped the two ACC wires
<li>unplug the two Turn Signal switch connectors, the Hazard flasher green wire (but not white wire), the two brake pedal switch wires (GY), and the two T/S Flasher wires (GW, GL) [href=http://datsun1200.com/modules/myalbum/photo.php?lid=5043
] No. 2, No. 4 - Hazard and Turn Signal connectors</li>
<li> unplug speaker wires (L/Gray) and antenna wire through glovebox opening
<li>Unplug passenger corner wiring (door switch wiring, and the plugs that come through the firewall)
<li>Unplug the two wires for the heater (black, blue/white)
<li>Remove the three dash-top machine screws (visible through windshield). http://datsun1200.com/modules/myalbum/photo.php?lid=5044. Be careful, these are philips-head, and strip easily. Use a No. 1 stubby or a L-shaped screwdriver tool.
http://datsun1200.com/modules/myalbum/photo.php?lid=5045 NOTE: the center bottom bolt doesn't seem to be on some/all dashes</li>
<li>Remove the dash-to-A pillar bolts: One on left bottom of dash, other on right. 10mm head Dash-to-Pillar connector (far right, below No. 3)</li>
<li>Carefully pull dash away from firewall. Make sure the heater control levers are out of the slot
<li>Carefully and slowly pull dash assembly out passenger door. While doing so, check to ensure wires and heater control are all free
Clean Up and Maintainence
Now that you have the dash out, it's the most convenient time for these tasks:- <li>Tighten heater hoses (four clamps: three on one side, one on the other)
<li>Ensure all the dash lights are working (see the <a href=http://datsun1200.com/modules/nsections/index.php?op=viewarticle&artid=71>Wiring</a> article)
<li>Wipe dust away from firewall, pedal box, heater box, etc
<li>Lubricate the wiper linkage. This is a heim-joint/rose-joint type of system. Just put some general purpose grease on it as best you can and wipe off the excess.
<li>Align the dash defrost ducts. Mine had 1/8 gap. By loosing, moving and retightening, I've got a much better seal. Hopefully the heater will demist/defrost better now
<li>clean the heater ducts (if you feel like it)
<li>Lubricate pedal shaft
<li>Lubricate hood-opener (bonnet lever)
<li>Lubricate heater lever assembly (dry grease) and cables
<li>Lubricate accelerator pedal pivot point
<li>Wash dash with mild cleaning solution
<li>Remove dash pad and paint it with vinyl/upholstery paint (flat black or <a href=http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=14100&forum=1>satin black</a> or semi-gloss?)
<a name=#dashpad>Removing the Dash Pad</a>
If you need to ...The dash pad is held on by eight small screws on inside of dash (four near top, four near bottom). <p> But first you need to remove the "Cluster Lid" (gauge assembly) ... <p>
<a name=#gauges>Removing Gauge Cluster</a>
The "Cluster Lid" can be removed with the dash in the car, if you remove the steering column plastic cover. Some say you need to remove the steering wheel as well. But it's far easier if the dash is out. In either case here are the steps:- <li>On the back, pull the main round gauge connector off. Just rock it off, there is no screw holding it on
<li>if the speedo cable is still attached, reach up under the dash and unscrew it
<li>On the back, pull the L wire off the cigarette lighter. Then unscrew the collar of the lighter (from the back)
<li>On the front, pull off the radio knobs, then unscrew the retaining washers
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