CURRENT FlRST PEAK TEST #72
This procedure measures the overall condition
of the complete starting system. Test requires
DCA hookup only.
Check conditon of starting system on C1 engines
with VTM trdngpowered from battery of vehicle
Run Confidence Test. Warm up engine to
operating temperature. Turn off ail electrical
Possible Error Messages:
E002 Transducer not connected.
E005 Offset not performed.
E008 VTM does not detect battery voltage.
E013 VTM cannot use data received.
E020 No first peak information was detected by
E021 VTM cannot calculate result because
current is over current probes range.
DiscABonnect fuel solenoid wire 54A to prevent
Make sure all vehicle accessories are off.
Set TEST SELECT switches to 72.
If .22.214.171.124 is displayed, current first peak was
too high and cannot be measured with VTM.
Press and hold TEST button until CAL appears
If E013 is displayed, then check battery
Release TEST button and wait for offset value
connections and correct as necessary. Repeat
to appear on display. If offset is within the range
Step 6. If E013 persists after 3 tests, VTM
-150 to 150, proceed. If not, go to DCA
cannot perform test.
Press and release TEST button.
When GO appears on display, crank engine for
2 seconds or until one of the following appears
on the display OFF
An error measage
Observe displayed value (amps).