15 Test the Ignition 0 voltage circuit of the 1-2 SS valve
for an open.Refer to Testing for Continuity and
extxref document="029_body-21" filetype="sgml"
extrefid="i162420">Wiring Repairs in Wiring
Systems.Did you find and correct the condition?
other connecting branches of the circuit. Refer to
Power Distribution Schematics in Wiring Systems
for complete circuit distribution.
-
Go to Step 21
-
16
Test the control circuit of the 1-2 SS valve for a short
to ground between the PCM connector C2 and the AT
inline 20-way connector.
Refer to Testing for Short to Ground and extxref
document="029_body-21" filetype="sgml"
extrefid="i162420">Wiring Repairs in Wiring
Systems.
Did you find and correct the condition?
-
Go to Step 21
Go to Step 20
17
Test the control circuit of the 1-2 SS valve for an
open or short to power between the PCM connector
C2 and the AT inline 20-way connector.
Refer to Circuit Testing and extxref
document="029_body-21" filetype="sgml"
extrefid="i162420"> Wiring Repairs in Wiring
Systems.
Did you find and correct the condition?
-
Go to Step 21
Go to Step 20
18
Replace the AT wiring harness assembly.
Refer to Valve Body and Pressure Switch
Replacement .
Did you complete the replacement?
-
Go to Step 21
-
19
Replace the 1-2 SS valve.
Refer to Valve Body and Pressure Switch
Replacement .
Did you complete the replacement?
-
Go to Step 21
-
20
Replace the PCM.
Refer to Powertrain Control Module (PCM)
Replacement in Engine Controls - 6.0L (LQ4).
Did you complete the replacement?
-
Go to Step 21
-
Perform the following procedure in order to verify the
repair:
1. Select DTC.
2. Select Clear Info.
3. Drive the vehicle in D4 and ensure that the
following conditions are met:
z
The PCM commands the 1-2 SS valve
2004 Hummer H2
2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E Diagnosis (DTC P0218 To DTC P2771) - Hummer H2