229
M4.8-1055-019
03 Rev. 10/09
ELECTRICAL
Event Code 202
Step 2: Check P contactor wiring connections and
measure voltage across coil.
• If: 0 Vdc.
– Then proceed to Step 3.
• If: 35-38 Vdc.
– Then replace P contactor.
Step 3: Check voltage across CA405-26 and
CA405-27 on ACCESS 2.
• If: 0 Vdc.
– Then replace ACCESS 2.
• If: 35-38 Vdc.
– Then repair/replace wiring or connections from
ACCESS 2 to P coil.
Step 4: Check voltage at hydraulic motor power cable
connections, with key switch ON and P contactor
pulled in. Use BNEG on ACCESS 2 as reference.
• If: Less than 35 Vdc.
– Then proceed to Step 5.
• If: Greater than 35 Vdc.
– Then proceed to Step 6.
Step 5: Verify BNEG is present at ACCESS 2 power
connection by moving positive meter lead to (B+) at
battery.
• If: 0 Vdc.
– Then issue exists in BNEG power circuit. Re-
pair as necessary
• If: 35 to 38 Vdc.
– Then proceed to Step 6.
Step 6: Check voltage at hydraulic motor output (+BV)
and (-P) on ACCESS 2 with key on, and P contactor
pulled in.
• If: Less than 15 Vdc.
– Then follow Event 201 procedures.
• If: Greater than 20 Vdc.
– Then replace ACCESS 2.
• If: 15 to 20 Vdc.
– Then proceed to Step 7.
Step 7: Verify power cables are connected correctly
between motor and ACCESS 2.
• If: Cables connected correctly.
– Then proceed to Step 8.
• If: Cables incorrectly connected.
– Then repair/replace as necessary.
Step 8: Check for open hydraulic motor. Remove
power cables from motor, measure and record resis-
tance from A to D motor studs.
• If: Greater than 1 ohm resistance or open.
– Then check brushes, replace motor.
• If: Less than 1 ohm resistance.
– Then replace ACCESS 2.
Figure 15996-02
Crown 2007 PF15665-19 Rev. 10/09
To Next Page
Loading...