TEST
ACTION
APPLICABILITY
7
Turn the ignition off to the lock position.
Disconnect the PCM harness connector.
Remove the Transmission Control Relay.
Note: Check connectors - Clean/repair as necessary.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Connect a jumper wire between Fused B+ circuit and the Transmission Control Relay
Output circuit.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check both Transmission Control
Relay Output circuits in the appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?
All
Yes
→ Go To 8
No
→ Repair the Transmission Control Relay Output circuit for an open
or high resistance.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
8
Turn the ignition off to the lock position.
Install a substitute Relay in place of the Transmission Control Relay.
Start the engine.
Using a voltmeter, measure the battery voltage.
With the DRBIII
t, monitor the Transmission Switched Battery Voltage.
Compare the DRBIII
t Transmission Switched Battery voltage to the actual battery
voltage.
Is the DRBIII
t voltage within 2.0 volts of the battery voltage?
All
Yes
→ Replace the Transmission Control Relay.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
No
→ Go To 9
9
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
Check for any Technical Service Bulletins (TSB’s) and S.T.A.R. ON-LINE for any
possible causes that may apply.
If there are no possible causes remaining, view repair.
All
Repair
Replace the Powertrain Control Module per the Service Informa-
tion. WITH THE DRBIII
t PERFORM QUICK LEARN AND
REPROGRAM PINION FACTOR.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.
40
TRANSMISSION - NGC
P0562-LOW BATTERY VOLTAGE —
Continued