Toyota Paseo GT 1.5 odometer Starlet P9 mod

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WIP.

Modification Overview

Modding guide on how to make the Toyota Paseo 1.5 GT (5E-FE 1995-1999) odometer plug and play "oem-clean" for the Toyota P9 (EP91 4E-FE 1996-1999). This mod has the focus on not messing with the car wiring by depinning and changing the OEM wiring, but by modifying the GT cluster. After all while GT parts are relatively abundant, GT cars themselves are far less common on the road, making these odometers extremely cheap and readily available in the Japanese used-parts market.

There are three connectors on thee back of these odometer clusters the connectors are both the same type however the pinout is different. Most left connector is named A, the middle one C and the most right one B. So: A, C, B.

Toyota Starlet P9 Instrument Cluster Pinout

Cluster details: P30, with Tachometer by DENSO. Part numbers: 83800-10060 and 157370-5241.

Left Connector A (13-pin)

Pin Status Function / Notes
1 Connected Low battery warning light → diode
2 Connected Low battery warning light
3 Connected Parking brake warning light
4 NC
5 NC
6 Connected IG− (Tachometer)
7 NC
8 Connected Low oil pressure warning light (oil pressure switch)
9 Connected IG+ (Tachometer)
10 NC
11 NC
12 Connected SRS airbag warning light
13 Connected SRS airbag warning light

Middle Connector C (10-pin)

Pin Status Function / Notes
1 Connected Fog light indicator
2 Connected High beam indicator
3 Connected High beam indicator
4 Connected Left turn signal indicator
5 Connected Upper B (E terminal on Paseo) terminal (next to speedometer)
6 NC
7 NC
8 Connected Lower 4P terminal (next to speedometer)
9 NC
10 Connected Right turn signal indicator

Right Connector B (16-pin)

Pin Status Function / Notes
1 Connected Low fuel warning light
2 Connected ABS warning light
3 Connected Check engine light (MIL)
4 NC
5 Connected E terminal – temperature gauge
6 Connected T terminal – temperature gauge
7 NC
8 NC
9 NC
10 NC
11 NC
12 Connected F terminal – fuel gauge
13 NC
14 Connected Gauge backlight lamps
15 Connected Gauge backlight lamps
16 NC


Paseo GT 1.5 Instrument Cluster Pinout

Cluster details: L17, with Tachometer by JECO. Part numbers: 83800-16080 and 82208-001.

Left Connector A (13-pin)

Pin Status Function / Notes
1 Connected IG+ (Tachometer)
2 Connected Low battery warning light → diode
3 Connected Low battery warning light
4 NC
5 Connected Parking brake warning light
6 Connected Parking brake warning light
7 Connected Airbag warning light
8 NC
9 NC
10 Connected P (Tachometer)
11 Connected Airbag warning light
12 Connected Open door warning light
13 Connected Open door warning light

Middle Connector C (10-pin)

Pin Status Function / Notes
1 Connected High beam indicator
2 Connected Common ground for indicator lights (high beam, turn signals, fog light)
3 Connected Left turn signal indicator
4 Connected FU terminal – fuel gauge
5 Connected Fog light indicator
6 Connected Lower 4P terminal (next to speedometer)
7 Connected Upper E terminal (next to speedometer)
8 Connected Right turn signal indicator
9 NC
10 Connected Master warning light

Right Connector B (16-pin)

Pin Status Function / Notes
1 Connected Low fuel warning light
2 Connected TU terminal – temperature gauge
3 Connected ABS warning light
4 Connected Check engine light (MIL)
5 Connected Low oil pressure warning light (oil pressure switch)
6 NC
7 Connected Gauge backlight lamps
8 Connected TE terminal – temperature gauge
9 Connected Gauge backlight lamps
10 NC
11 NC
12 NC
13 NC
14 NC
15 NC
16 NC


Instrument Cluster Wiring Modification

These are the modifications needed to be made on the GT cluster. Below you will see the tables of traces that will need to be cut first. After cutting them we will rewire them.

Cutting Traces

Left Connector A (13-pin)

Pin Cutting
1 CUT
2 CUT
3 CUT
5 CUT
6 CUT
10 CUT

Middle Connector C (10-pin)

Pin Cutting
1 CUT
2 CUT
3 CUT
4 CUT
5 CUT
6 CUT
7 CUT
8 CUT
10 CUT

Right Connector B (16-pin)

Pin Cutting
2 CUT
3 CUT
4 CUT
5 CUT
7 CUT
8 CUT
9 CUT

Rewiring Traces

Rewiring can be done with jumpers made from resistor leads with heat shrink tubing around them or solid core modwire.

Left Connector A (13-pin)

Pin Rewire
1 Must now connect to what PIN 2 went to
2 Must now connect to what PIN 3 went to
3 Must now connect to what PIN 5 went to
5 NC / OPEN
6 Must now connect to what PIN 10 went to
8 Must now connect to PIN 5 on connector B (16pin) going to oil pressure indicator light
9 Must now connect to what PIN 1 went to
10 NC / OPEN

Middle Connector C (10-pin)

Pin Rewire
1 CUT
2 CUT
3 CUT
4 CUT
5 CUT
6 CUT
7 CUT
8 CUT
10 CUT

Right Connector B (16-pin)

Pin Rewire
2 CUT
3 CUT
4 CUT
5 CUT
7 CUT
8 CUT
9 CUT


Notes on the Modification

Leave the four lamps open (remove bulb). Do this for: open door warning, SRS airbag warning, park warning lights in the bottom left corner under connector A. Also next to connector A you have a the indicator light and a triangle warning light. Leave the triangle warning light open too. All these light are unused and not connected, connecting them might short something not reverse engineered. They must all be left OPEN FLOATING (important).