TM 10-3930-675-20-1
0012 00-7
ELECTRONIC CONTROL UNIT (ECU) INPUT VOLTAGE TROUBLESHOOTING - CONTINUED
0012 00
Table 4. Error Code 201 - Supply Voltage to Tophandler ECU (791) Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 201 - Supply Voltage to
Tophandler ECU (791) Failure - Continued
10.Check voltage at connector
X186 pin 1 located in
tophandler junction box.
If voltage is present, notify SRA
to replace wire (A1861A).
Table 5. Error Code 202 - Supply Voltage to Tophandler ECU (791) Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 202 - Supply Voltage to
Tophandler ECU (791) Failure
1. Remove tophandler junction
box cover and ensure that
circuit breaker 51-F41 is not
tripped.
Reset circuit breaker as required
(WP 0076 00).
2. Test relay 315-1 for proper
operation (WP 0111 00).
Replace relay if shorted (WP
0076 00).
3. Disconnect
ECU
(790)
connector 1 and check voltage
at pin 7and pin 8.
If voltage is present, replace
ECU (790) (WP 0079 00).
4. Test automatic circuit breaker
51-F41at tophandler junction
box (WP 0111 00).
Replace circuit breaker if
shorted (WP 0076 00).
5. Check voltage at circuit
breaker 51-F41.
If voltage is present, notify SRA.
6. Check voltage at relay 315-1
pin 87.
If voltage is present, notify SRA
to replace wire (A51J).
7. Check voltage at connector
X186 pin 1.
If voltage is present, notify SRA
to replace wire (A1861A).
DIAG TOP LIFT 1(16)
SYSTEM POWER 24.00V
POWER RI CAN 24.00V
POWER LE CAN 24.00V
10 V REF OUT 10.00V
