Troubleshooting Wiring - Manitowoc Grove TMS9000-2 Service Manual

CARRIER
3. Verify brake lamp switch is connected to ECU via hard
wire or J1939.
4. With service brake released, check for presence of stop
lamp bulb.
Dynamometer Test Mode (ATC Indicator Lamp
Continuously Illuminated)
Clear the dynamometer test mode by depressing and
releasing the blink code switch three times (or use an off-
board diagnostic tool).
ABS Indicator Lamp
Verify diagnostic blink code switch is open when not
activated.
PMV Commons
Measure resistance between any common (PMV, TCV and
Diff.) and voltage or ground.
Test
Any PMV, TCV or
Diff. Common to Open Circuit (no continuity)
Voltage or Ground
Differential Lock Solenoid
Measure resistance between Diff lock solenoid and voltage
or ground.
Test
Diff. Lock Solenoid
to Voltage or Open Circuit (no continuity)
Ground
ECU Wire Harness Connector: Miscellaneous Pins
Connector Pin
4 TCV Common
9 Stop Lamp Switch
12 ABS WL Ground
X1
18 Way
15 ABS WL Interlock
17 Not Used
18 ABS WL
8-74
Measurement
Measurement
FIGURE 8-75
PMV Location
Published 01-14-2021 Control # 707-01
TMS9000-2 SERVICE MANUAL
Connector Pin
3 PMV Left Steer Axle Common
6 PMV Right Steer Axle Common
X2
18 Way
9 PMV Right Drive Axle Common
12 PMV Left Drive Axle Common
2 Diff. Lock Solenoid
3 Diff. Lock Solenoid Common
X3
15 Way
6 PMV Left Additional Axle Common
9 PMV Right Additional Axle Common

Troubleshooting Wiring

CAUTION
Possible Equipment Damage!
All unused ECU connectors MUST be covered and
receive proper environmental protection.
ABS/ATC Wiring
All wire harness connectors must be properly seated. The
use of secondary locks is strongly advised.
CAB ECU Wiring Harness Connectors
The in-cab EC-60™ controllers are designed to interface
with AMP MCP 2.8 connectors. Follow all AMP requirements
for the repair of wire harnesses.
All wire harness connectors must be properly seated. The
use of secondary locks is strongly advised.
ABS Wiring Requirements
As a matter of good practice and to ensure maximum system
robustness, always use the maximum size wire supported by
the wire harness connectors for battery, ignition, ground,
PMV, TCV, Interaxle Differential Lock and indicator lamp
circuits.
All sensor and serial communications circuits (J1587 and
J1939) must use twisted pair wiring (one to two twists per
inch). See the appropriate SAE document for additional
details.
It is recommended that wires be routed straight out of a
connector for a minimum of three inches before the wire is
allowed to bend. Battery and ground wires should be kept to
a minimum length.
If convoluted tubing is used, its I.D. must match the size of
the wire bundle as closely as possible.
PMV Location