MacDon M1170 Operator's Manual page 26

• Firewall extension module (A)
Two connectors: P235 and P236
Location: Behind cab, near header lift/fan manifold.
To disconnect, use a small 3–6 mm (1/8–1/4 in.) blade
screwdriver to insert into the connector's locking tab. Gently
pry upward (no more than 6 mm [1/4 in.]) to unlock the
connector tab, and then pull the connector away from the
module.
• Chassis extension module (A)
Two connectors: P247 and P248
Location: Under cab, inside left frame rail
To disconnect, use a small 3–6 mm (1/8–1/4 in.) blade
screwdriver to insert into the connector's locking tab. Gently
pry upward (no more than 6 mm [1/4 in.]) to unlock the
connector tab, and then pull the connector away from the
module.
• Engine Control Module (ECM)
Two connectors for Cummins: P100 (A) and J1 Cummins
Proprietary ECM Connector (B)
Location: On engine
To disconnect, pull the rubber boot off the cover, unlock the
latch, and undo the main over-center latch. Remove strain
relief bolts (C) so the connectors can be pulled away from
the ECM.
IMPORTANT:
Be sure to disconnect both connectors. Note connector
locations.
IMPORTANT:
Be sure to reconnect connectors in the proper locations. Do
NOT cross connect.
214733
SAFETY
Figure 1.21: Firewall Extension Module
A
Figure 1.22: Chassis Extension Module
Figure 1.23: Engine Control Module
10
A
B
A
C
C
Revision A