The end of the Plug and Play MIMA, and MIMA2
MIMA introduction
MIMA Operation
MIMA Users Page
Installing MIMA with The Plug and Play harness
FAQ
Installing MIMA with the pin replacement harness
software
The MIMA Joystick
The MIMA Display
The FAS system
DIY MIMA L
Cable impedance problem with last MIMA systems.
Learning to drive with MIMA
Hardwired Harness
Level 1 Installation
2. Disassembly
3. Thread the Harness
4. Threading the Harness, Cont'
5. Opening the Harness
6. Level 1 Install (rear connections)
7. Fan Diodes Install
8. Battery Amp Monitor Rear Connections
9. Mounting the MIMA system in the car.
10. Level One wiring test.
11. Level 1 Check first power up
12. The first MIMA operational test
Ammeter zero level
Jog the calibration
13. Testing the fan control wiring
14. Confirming temp probe and fan control operation
Level 2 install
Theory of Operation

Ammeter zero level

I have approximately adjusted the ammeter zero level on your card on my car, but each car is slightly different, so we will now zero the ammeter. First make sure that no fans or A/C, lights, radio, or other loads are operating. Quickly tap the mode 1 button on the joystick. The mode 1 active led should light. This mode disables background charging. All other leds should be out, but one assist or one charge led may be on.

Adjust the Ammeter zero adjustment potentiometer until all of the amp leds go out. This is a sensitive adjustment, so turn slowly. If more red/amber leds come on while you adjust, you are going the wrong way.
Since we have not installed the map or throttle position signals, PIMA will not operate correctly. The map signal will be 0 V, so the system will try to give full charging. To fix this, while driving, activate PIMA by taping the mode 2 switch. Full charging will occur. Jog the charge calibrate joystick repeatedly to the lower charge position, until the charge leds go out. (you could also set some level of charge, and use this as an adjustable background charge control)


Ammeter zero level