Dodge ZB 2005 Service Manual page 1191

DRIVEABILITY - GAS
P0136-O2 SENSOR 1/2 HEATER CIRCUIT MALFUNCTION —
TEST
4 Turn the ignition off.
Disconnect the PCM harness connectors.
Measure the resistance of the (K512) O2 Heater Relay Control circuit from the PDC
(Heater Relay) connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the (K512) O2 Heater Relay Control circuit.
No
5 Measure the resistance between ground and the (K512) O2 Heater Relay Control
circuit at the PDC connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (K512) O2 Sensor Heater Relay
→ Go To 6
No
6 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are not possible causes remaining, view repair.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
70
Continued
APPLICABILITY
All
All
All