2010 Cadillac Truck SRX AWD V6-3.0L Page 2123

2010 Cadillac Truck SRX AWD V6-3.0L Page 2123

* TCM communication is normal.

* The automatic transmission fluid temperature is more than 20掳C (68掳F).

* SLB1 current is more than 0.85 A.

* SLB1 current is not changed.

P2729

* The ignition voltage is 10.2-15.5 V.

* The engine speed is greater than 400 RPM for 2 s.

* The transmission is not in emergency mode.

* Driving in D range.

* TCM communication is normal.

* DTC P2730 is not set.

P2730

* The ignition voltage is 10.2-15.5 V.

* The engine speed is greater than 400 RPM for 2 s.

* The transmission is not in emergency mode.

* Driving in D range.

* TCM communication is normal.

* DTC P2729 is not set.

Conditions for Setting the DTC

P2725

Deviation between commanded current and feedback current.

P2728

The TCM detects the error current more than 80 mA for 2.75 ms.

P2729

The TCM detects at least 5 times less than 23 mA current consumption of the SLB1 control circuit for 100 ms.

P2730

The TCM detects at least 5 times more than 1.333 A current consumption of the SLB1 control circuit for 100 ms.

Action Taken When the DTC Sets

P2725, P2728

* DTC P2725 and P2728 are Type B DTC.

* The TCM turns OFF all solenoids.

* The TCM allows the vehicle to operate only in the second gear and "R" range after a stop.

P2729, P2730

* DTCs P2729 and P2730 are Type B DTCs.

* No self learning function.

* The TCM turns OFF all solenoids.

* The TCM allows the vehicle to operate only in the second gear and "R" range after a stop.

Conditions for Clearing the DTC

P2725, P2728

* DTC P2725 and P2728 are Type B DTC.

* The TCM detects the error current less than 50 mA for 2.75 ms.

P2729, P2730

* DTCs P2729 and P2730 are Type B DTCs.

* The current consumption of the SLB1 control circuit is 0.1-1.1 A for 500 ms.

Diagnostic Aids

When attempting to set solenoid electrical DTCs, ensure the TCM is warmed up and the transmission is operated in 2nd gear long enough to ensure

a 3掳C (5掳F) increase in TCM substrate temperature. This will place the TCM in the optimal condition to test solenoid electrical DTCs.