Ford Transit 2002 Owner's Manual page 1035

PINPOINT TEST D : DTC P0122, DTC P0123 - TP SENSOR CIRCUIT LOW
INPUT, TP SENSOR CIRCUIT HIGH INPUT
TEST CONDITIONS
D1: TEST THE TP SENSOR
D2: CHECK CIRCUITS 8-RJ28 AND 8-RJ28B FOR OPEN
PINPOINT TEST E : DTC P0336 - CKP SENSOR CIRCUIT
TEST CONDITIONS
E1: TEST THE CKP SENSOR
E2: CHECK CIRCUITS 8-RJ4, 8-RJ4B, 9-RJ4 AND 9-RJ4B FOR OPEN
(85kW/115PS) - Zetec, Liquefied Petroleum Gas
(LPG), Removal and Installation).
TEST the system for normal operation.
No
REPAIR the circuit(s), TEST the system for normal
operation.
DETAILS/RESULTS/ACTIONS
With the engine switched to petrol operation and
1
using the WDS, check the operation of the TP sensor.
Is the TP sensor operating correctly?
Yes
GO to D2.
No
INSTALL a new TP sensor, TEST the system for
normal operation.
Ignition switch in position 0.
1
Disconnect AFCM C406.
2
Disconnect TP sensor C703.
3
Measure the resistance between AFCM C406 pin 6,
4
circuit 8-RJ28B (WH), harness side and TP sensor
C703 pin 2, circuit 8-RJ28 (WH), harness side.
Is the resistance less than 5 ohms?
Yes
INSTALL a new AFCM.
REFER to: Gas Control Module
Charging and Controls - 1.8L Duratec-DOHC
(85kW/115PS) - Zetec, Liquefied Petroleum Gas
(LPG), Removal and Installation).
TEST the system for normal operation.
No
REPAIR the circuit, TEST the system for normal
operation.
DETAILS/RESULTS/ACTIONS
With the engine switched to petrol operation and
1
using the WDS, check the operation of the CKP
sensor.
Is the CKP sensor operating correctly?
Yes
GO to E2.
No
INSTALL a new CKP sensor, TEST the system for
normal operation.
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