CODES
DTC 32033 - Combi - Main Cont Coil - Circuit
DTC 32034 - Combi - Main Cont Coil - Short
POSSIBLE CAUSE
A. MAIN CONTACTOR COIL WIRING FAULT
B. MAIN CONTACTOR COIL FAULT
C. FAULTY COMBINATION CONTROLLER
NOTE
Please refer to the end of this procedure for supporting diagrams.
COMPONENT OPERATIONAL CHECK
NOTE: Always check battery condition and state of charge before performing electrical troubleshooting. A faulty
or low charged battery will cause electrical features to not operate as designed and give incorrect readings while
performing electrical tests.
PROCEDURE OR ACTION:
1. Conduct a visual inspection of all connectors/wiring associated with the fault code.
Are any faults detected/observed?
YES: Repair/replace connector or wiring associated with faults found. Refer to the appropriate Electrical
System YRM.
NO: Proceed to Step 2.
2. Re-key the vehicle.
Is the code still present?
YES: Proceed to Step 3.
NO: Problem may be intermittent.
3. Locate input diagnostics (D1) and view the main contactor position (D1.2).
Is the main contactor closed at correct time?
YES: Fault may be intermittent.
NO: Proceed to Cause A.
Electrical System Diagnostic Trouble Codes
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-20-15
Main Contactor Coil (Cont)
CAUSE A - MAIN CONTACTOR COIL WIRING FAULT
PROCEDURE OR ACTION:
NOTE: Key in ON position.
1. Disconnect the main contactor coil's positive socket terminal TS003 and measure voltage between socket terminal
TS003 and B(-).
Is voltage 24 ± 2.5 Vdc?
YES: Disconnect battery and proceed to Step 2.
NO: Inspect circuit 010-E for open or short.
NOTE: Key in OFF position.
2. Disconnect combination controller connector CPS005 and the contactor coil's negative socket terminal
TS004. Measure resistance between the main contactor coil negative socket terminal TS004 and the combination
controller connector CPS005, socket 12.
Is resistance <1 ohm?
YES: Proceed to Cause B.
NO: Inspect ground control circuit 079 for open or source of excessive resistance.
CAUSE B - MAIN CONTACTOR COIL FAULT
PROCEDURE OR ACTION:
NOTE: Key in OFF position.
1. Measure resistance between the main contactor's coil terminals.
Is resistance 32 ± 4.0 ohms?
YES: Proceed to Cause C.
NO: Replace faulty main contactor coil.
Diagnostic Trouble Codes Electrical System
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-20-16
Main Contactor Coil (Cont)
CAUSE C - FAULTY COMBINATION CONTROLLER
PROCEDURE OR ACTION:
1. If no faults are found, replace controller. Make sure to indicate the DTC code(s) on the warranty claim to include
an accurate problem description leading to controller replacement.