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Old 03-29-2011, 05:14 PM   #1
Joey
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Default tech - transmissions - automatic gearbox fault codes

Not sure where I got this:

Fault code, OBD II (TestBook) Fault description Effect Warning lamp illumination
MIL Sport/Manual
P0705 (14, 23) * Gear position switch, incorrect outputs Maintains current gear in low range, limp home mode in high range. Shift pressure to maximum, harsh gear shifts/engagement. On On
P0721 (21) * Downshift safety monitor prevented downshift which would have caused engine overspeed Maintains current gear in low range, limp home mode in high range. Shift pressure to maximum, harsh gear shifts/engagement. On On
P0722 (22) * Torque converter slipping Maintains current gear in low range, limp home mode in high range. Shift pressure to maximum,harsh gear shifts/engagement. On On
P0731 (29) * Ratio monitoring, implausible 1st gear ratio No apparent effect On On
P0732 (30) * Ratio monitoring, implausible 2nd gear ratio No apparent effect On Off
P0733 (31) * Ratio monitoring, implausible 3rd gear ratio No apparent effect On Off
P0734 (32) * Ratio monitoring, implausible 4th gear ratio No apparent effect On Off
P0741 (5) * Torque converter lock-up clutch fault May affect driveability On Off
P0743 (7, 25) * Torque converter lock-up solenoid (MV 3), open or short circuit Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P0748 (10, 28) * Pressure regulating solenoid (MV 4), open or short circuit Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P0753 (8, 26) * Shift solenoid (MV 1), open or short circuit Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P0758 (9, 27) * Shift solenoid (MV 2), open or short circuit Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1562 (24) * Battery supply below 9V while engine running Maintains current gear in low range, limp home mode in range. Shift pressure to maximum, harsh gear shifts/engagement. Off On
P1601 (4) * ECU, EEPROM checksum Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1606 (3) * EEPROM No apparent effect On† Off
P1606 (6) * Watchdog No apparent effect On On
P1612 (2) * Solenoid valves power supply relay, sticking closed or open circuit Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1613 (1) * Solenoid valves power supply relay, sticking open or short circuit Limp home mode in low and high ranges. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1705 (39) Transmission high/low range, implausible input No apparent effect On Off
P1810 (12, 13) Sport/Manual warning lamp circuit fault Lamp fails bulb check or is permanently illuminated. No effect on gearbox operation. On Off
P1841 (16) * CAN bus fault Maintains current gear in low range, limp home mode in high range. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1842 (15) * CAN level monitoring Maintains current gear in low range, limp home mode in range. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1843 (17) * CAN time-out monitoring Maintains current gear in low range, limp home mode in high range. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1884 (11) * CAN message: Engine friction invalid No apparent effect. On Off
P1884 (18) * CAN message: Throttle position invalid Substitute throttle angle of 50% adopted. No kickdown. Operates in economy modes only. On On
P1884 (19) CAN message: Engine temperature invalid Substitute engine temperature derived from other inputs. No apparent effect. On Off
P1884 (20) CAN message: Road speed invalid No apparent effect On Off
P1884 (33, 34) * CAN message: Engine torque invalid Substitute engine torque of derived from other inputs. May affect shift quality. On Off
P1884 (35) * CAN message: Engine speed invalid Maintains current gear in low range, limp home mode in high range. Shift pressure to maximum, harsh gear shifts/engagement. On On
P1884 (37) CAN message: Engine air intake temperature invalid No apparent effect. On Off
P1844 (38) Altitude shift control invalid No reduced torque compensation, possible reduction in performance/ driveability at altitude or high ambient temperatures. On Off
* = Emissions (OBD II) relevant
On† = MIL illuminates immediately (in all other faults, MIL On = illuminates in the 2nd consecutive drive cycle if fault still present)
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Joey
Cincinnati OH
http://www.customroveraccessories.com Home of the New D2 horn buttons!
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http://www.usarovers.com/ (call for Rover parts ask for Nathan 502-222-5859)

Rover Radio issues or IPOD Adapters http://home.valornet.com/splacket/index.htm

EAS fault http://www.rswsolutions.com

When working with GEMS vehicles. Never try to locate a misfire by pulling plug leads off - pull the injector connector instead. Otherwise you can blow up the ECU.

Secondly never swap ECUs between vehicles to test them, because both vehicles and ECUs may stop working, and you'll have to have them all reset by a franchised LR dealer (ouch!).

To download the RAVE manual, follow this link http://www.landroverresource.com/
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