Instruction Manual

PTEC II

Notes:

The most common failure in an older system is the transducer circuit. This can be either

wiring, corrosion or a failure in the transducer itself. The common complaint is of no re-

sponse to changing pressures

The second most common failure is with the Park Brake circuit ground. Either a failing

pressure switch or high resistance wiring and connections. It is usually evidenced by

intermittent operation and the engine dropping to Idle unexpectedly.

ECU Connector 1 PUMP LIGHT CONNECTOR

1 2 3 A SYS READY

A PLUG PLUG PLUG B SYS ACTIVE

B DEC MAG PU INC C INTLK #1A

C DIAGNOSTIC PLUG PLUG D INTLK #1

D PLUG PLUG PLUG E INC

E INTLK 1A GOV MODE PLUG F DEC

G GOV LGT

F PLUG PLUG PLUG H GROUND

G PLUG PPSI PLUG

H PLUG PLUG PLUG DASH CONNECTOR

J PLUG PLUG PSI GND A BATT +

K PLUG PLUG ACT IN/ON B SYS READY

C DIAGNOSTIC

ECU Connector 2 D GROUND

1 2 3 E INTLK #1

A PLUG PLUG ACT OUT

B PLUG PLUG PLUG

C PLUG GOV LIGHT PLUG ACTUATOR Connector

A PLUG

D PLUG PLUG GROUND B PLUG

E PLUG PLUG PLUG C Ground

F SYS ACTIVE 5V OUT MAG GND D Act Dir A

E Act Dir B

INTERFACE Connector PRESSURE TRANSDUCER

A Act OUT A PSI GND

B PLUG B +5 VDC

C PLUG C PPSI

E GROUND

FBATT + SPEED SENSOR

L INTLK #1A A MAG PU

M ACT IN/ON B MAG GND

N ACT DIR A

P ACT DIR B

Connector Pinout