ON-BOARD DIAGNOSTIC
K91
K
Diagnostic procedure
POSSIBLE
CAUSE
• Shift solenoid B malfunction
• Short to ground between ATX connector terminal C and PCM terminal 4AC
• Short to power between ATX connector terminal C and PCM terminal 4AC
• Open circuit between shift solenoid B terminal B and ATX connector terminal C
• Open circuit between ATX connector terminal C and PCM terminal 4AC
• Open circuit between shift solenoid B terminal A and body ground point
• Damaged connector between shift solenoid B and PCM
• PCM malfunction
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME PID DATA been
recorded?
Yes Go to next step.
No Record FREEZE FRAME PID DATA on repair order, then
go to next step.
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins availability.
• Is any related repair information available?
Yes Perform repair or diagnosis according to available repair
information.
• If vehicle is not repaired, go to next step.
No Go to next step.
3 INSPECT ATX CONNECTOR FOR POOR
CONNECTION
• Turn ignition key to OFF.
• Disconnect ATX connector.
• Check for poor connection (damaged/pulled-
out terminals, corrosion, etc.).
• Is connection okay?
Yes Go to next step.
No Repair or replace connector and/or terminals, then go to
Step 11.
DTC P0758 Shift solenoid B malfunction (electrical)